diff --git a/src/features/authFiles/components/AuthFileCard.tsx b/src/features/authFiles/components/AuthFileCard.tsx
index f92acc7..5bec54e 100644
--- a/src/features/authFiles/components/AuthFileCard.tsx
+++ b/src/features/authFiles/components/AuthFileCard.tsx
@@ -25,6 +25,7 @@ import styles from '@/pages/AuthFilesPage.module.scss';
 
 export type AuthFileCardProps = {
   file: AuthFileItem;
+  selected: boolean;
   resolvedTheme: ResolvedTheme;
   disableControls: boolean;
   deleting: string | null;
@@ -38,6 +39,7 @@ export type AuthFileCardProps = {
   onOpenPrefixProxyEditor: (name: string) => void;
   onDelete: (name: string) => void;
   onToggleStatus: (file: AuthFileItem, enabled: boolean) => void;
+  onToggleSelect: (name: string) => void;
 };
 
 const resolveQuotaType = (file: AuthFileItem): QuotaProviderType | null => {
@@ -50,6 +52,7 @@ export function AuthFileCard(props: AuthFileCardProps) {
   const { t } = useTranslation();
   const {
     file,
+    selected,
     resolvedTheme,
     disableControls,
     deleting,
@@ -62,7 +65,8 @@ export function AuthFileCard(props: AuthFileCardProps) {
     onDownload,
     onOpenPrefixProxyEditor,
     onDelete,
-    onToggleStatus
+    onToggleStatus,
+    onToggleSelect
   } = props;
 
   const fileStats = resolveAuthFileStats(file, keyStats);
@@ -92,11 +96,20 @@ export function AuthFileCard(props: AuthFileCardProps) {
 
   return (
     <div
-      className={`${styles.fileCard} ${providerCardClass} ${file.disabled ? styles.fileCardDisabled : ''}`}
+      className={`${styles.fileCard} ${providerCardClass} ${selected ? styles.fileCardSelected : ''} ${file.disabled ? styles.fileCardDisabled : ''}`}
     >
       <div className={styles.fileCardLayout}>
         <div className={styles.fileCardMain}>
           <div className={styles.cardHeader}>
+            {!isRuntimeOnly && (
+              <input
+                type="checkbox"
+                className={styles.selectionCheckbox}
+                checked={selected}
+                onChange={() => onToggleSelect(file.name)}
+                aria-label={t('auth_files.batch_select_all')}
+              />
+            )}
             <span
               className={styles.typeBadge}
               style={{
diff --git a/src/features/authFiles/hooks/useAuthFilesData.ts b/src/features/authFiles/hooks/useAuthFilesData.ts
index cc2b4b5..e74781a 100644
--- a/src/features/authFiles/hooks/useAuthFilesData.ts
+++ b/src/features/authFiles/hooks/useAuthFilesData.ts
@@ -1,4 +1,4 @@
-import { useCallback, useRef, useState, type ChangeEvent, type RefObject } from 'react';
+import { useCallback, useEffect, useRef, useState, type ChangeEvent, type RefObject } from 'react';
 import { useTranslation } from 'react-i18next';
 import { authFilesApi } from '@/services/api';
 import { apiClient } from '@/services/api/client';
@@ -15,6 +15,8 @@ type DeleteAllOptions = {
 
 export type UseAuthFilesDataResult = {
   files: AuthFileItem[];
+  selectedFiles: Set<string>;
+  selectionCount: number;
   loading: boolean;
   error: string;
   uploading: boolean;
@@ -29,6 +31,11 @@ export type UseAuthFilesDataResult = {
   handleDeleteAll: (options: DeleteAllOptions) => void;
   handleDownload: (name: string) => Promise<void>;
   handleStatusToggle: (item: AuthFileItem, enabled: boolean) => Promise<void>;
+  toggleSelect: (name: string) => void;
+  selectAllVisible: (visibleFiles: AuthFileItem[]) => void;
+  deselectAll: () => void;
+  batchSetStatus: (names: string[], enabled: boolean) => Promise<void>;
+  batchDelete: (names: string[]) => void;
 };
 
 export type UseAuthFilesDataOptions = {
@@ -47,8 +54,50 @@ export function useAuthFilesData(options: UseAuthFilesDataOptions): UseAuthFiles
   const [deleting, setDeleting] = useState<string | null>(null);
   const [deletingAll, setDeletingAll] = useState(false);
   const [statusUpdating, setStatusUpdating] = useState<Record<string, boolean>>({});
+  const [selectedFiles, setSelectedFiles] = useState<Set<string>>(new Set());
 
   const fileInputRef = useRef<HTMLInputElement | null>(null);
+  const selectionCount = selectedFiles.size;
+
+  const toggleSelect = useCallback((name: string) => {
+    setSelectedFiles((prev) => {
+      const next = new Set(prev);
+      if (next.has(name)) {
+        next.delete(name);
+      } else {
+        next.add(name);
+      }
+      return next;
+    });
+  }, []);
+
+  const selectAllVisible = useCallback((visibleFiles: AuthFileItem[]) => {
+    const nextSelected = visibleFiles
+      .filter((file) => !isRuntimeOnlyAuthFile(file))
+      .map((file) => file.name);
+    setSelectedFiles(new Set(nextSelected));
+  }, []);
+
+  const deselectAll = useCallback(() => {
+    setSelectedFiles(new Set());
+  }, []);
+
+  useEffect(() => {
+    if (selectedFiles.size === 0) return;
+    const existingNames = new Set(files.map((file) => file.name));
+    setSelectedFiles((prev) => {
+      let changed = false;
+      const next = new Set<string>();
+      prev.forEach((name) => {
+        if (existingNames.has(name)) {
+          next.add(name);
+        } else {
+          changed = true;
+        }
+      });
+      return changed ? next : prev;
+    });
+  }, [files, selectedFiles.size]);
 
   const loadFiles = useCallback(async () => {
     setLoading(true);
@@ -153,6 +202,12 @@ export function useAuthFilesData(options: UseAuthFilesDataOptions): UseAuthFiles
             await authFilesApi.deleteFile(name);
             showNotification(t('auth_files.delete_success'), 'success');
             setFiles((prev) => prev.filter((item) => item.name !== name));
+            setSelectedFiles((prev) => {
+              if (!prev.has(name)) return prev;
+              const next = new Set(prev);
+              next.delete(name);
+              return next;
+            });
           } catch (err: unknown) {
             const errorMessage = err instanceof Error ? err.message : '';
             showNotification(`${t('notification.delete_failed')}: ${errorMessage}`, 'error');
@@ -186,6 +241,7 @@ export function useAuthFilesData(options: UseAuthFilesDataOptions): UseAuthFiles
               await authFilesApi.deleteAll();
               showNotification(t('auth_files.delete_all_success'), 'success');
               setFiles((prev) => prev.filter((file) => isRuntimeOnlyAuthFile(file)));
+              deselectAll();
             } else {
               const filesToDelete = files.filter(
                 (f) => f.type === filter && !isRuntimeOnlyAuthFile(f)
@@ -212,6 +268,20 @@ export function useAuthFilesData(options: UseAuthFilesDataOptions): UseAuthFiles
               }
 
               setFiles((prev) => prev.filter((f) => !deletedNames.includes(f.name)));
+              setSelectedFiles((prev) => {
+                if (prev.size === 0) return prev;
+                const deletedSet = new Set(deletedNames);
+                let changed = false;
+                const next = new Set<string>();
+                prev.forEach((name) => {
+                  if (deletedSet.has(name)) {
+                    changed = true;
+                  } else {
+                    next.add(name);
+                  }
+                });
+                return changed ? next : prev;
+              });
 
               if (failed === 0) {
                 showNotification(
@@ -235,7 +305,7 @@ export function useAuthFilesData(options: UseAuthFilesDataOptions): UseAuthFiles
         }
       });
     },
-    [files, showConfirmation, showNotification, t]
+    [deselectAll, files, showConfirmation, showNotification, t]
   );
 
   const handleDownload = useCallback(
@@ -299,8 +369,133 @@ export function useAuthFilesData(options: UseAuthFilesDataOptions): UseAuthFiles
     [showNotification, t]
   );
 
+  const batchSetStatus = useCallback(
+    async (names: string[], enabled: boolean) => {
+      const uniqueNames = Array.from(new Set(names));
+      if (uniqueNames.length === 0) return;
+
+      const targetNames = new Set(uniqueNames);
+      const nextDisabled = !enabled;
+
+      setFiles((prev) =>
+        prev.map((file) =>
+          targetNames.has(file.name) ? { ...file, disabled: nextDisabled } : file
+        )
+      );
+
+      const results = await Promise.allSettled(
+        uniqueNames.map((name) => authFilesApi.setStatus(name, nextDisabled))
+      );
+
+      let successCount = 0;
+      let failCount = 0;
+      const failedNames = new Set<string>();
+      const confirmedDisabled = new Map<string, boolean>();
+
+      results.forEach((result, index) => {
+        const name = uniqueNames[index];
+        if (result.status === 'fulfilled') {
+          successCount++;
+          confirmedDisabled.set(name, result.value.disabled);
+        } else {
+          failCount++;
+          failedNames.add(name);
+        }
+      });
+
+      setFiles((prev) =>
+        prev.map((file) => {
+          if (failedNames.has(file.name)) {
+            return { ...file, disabled: !nextDisabled };
+          }
+          if (confirmedDisabled.has(file.name)) {
+            return { ...file, disabled: confirmedDisabled.get(file.name) };
+          }
+          return file;
+        })
+      );
+
+      if (failCount === 0) {
+        showNotification(t('auth_files.batch_status_success', { count: successCount }), 'success');
+      } else {
+        showNotification(
+          t('auth_files.batch_status_partial', { success: successCount, failed: failCount }),
+          'warning'
+        );
+      }
+
+      deselectAll();
+    },
+    [deselectAll, showNotification, t]
+  );
+
+  const batchDelete = useCallback(
+    (names: string[]) => {
+      const uniqueNames = Array.from(new Set(names));
+      if (uniqueNames.length === 0) return;
+
+      showConfirmation({
+        title: t('auth_files.batch_delete_title'),
+        message: t('auth_files.batch_delete_confirm', { count: uniqueNames.length }),
+        variant: 'danger',
+        confirmText: t('common.confirm'),
+        onConfirm: async () => {
+          const results = await Promise.allSettled(
+            uniqueNames.map((name) => authFilesApi.deleteFile(name))
+          );
+
+          const deleted: string[] = [];
+          let failCount = 0;
+          results.forEach((result, index) => {
+            if (result.status === 'fulfilled') {
+              deleted.push(uniqueNames[index]);
+            } else {
+              failCount++;
+            }
+          });
+
+          if (deleted.length > 0) {
+            const deletedSet = new Set(deleted);
+            setFiles((prev) => prev.filter((file) => !deletedSet.has(file.name)));
+          }
+
+          setSelectedFiles((prev) => {
+            if (prev.size === 0) return prev;
+            const deletedSet = new Set(deleted);
+            let changed = false;
+            const next = new Set<string>();
+            prev.forEach((name) => {
+              if (deletedSet.has(name)) {
+                changed = true;
+              } else {
+                next.add(name);
+              }
+            });
+            return changed ? next : prev;
+          });
+
+          if (failCount === 0) {
+            showNotification(`${t('auth_files.delete_all_success')} (${deleted.length})`, 'success');
+          } else {
+            showNotification(
+              t('auth_files.delete_filtered_partial', {
+                success: deleted.length,
+                failed: failCount,
+                type: t('auth_files.filter_all')
+              }),
+              'warning'
+            );
+          }
+        }
+      });
+    },
+    [showConfirmation, showNotification, t]
+  );
+
   return {
     files,
+    selectedFiles,
+    selectionCount,
     loading,
     error,
     uploading,
@@ -314,6 +509,11 @@ export function useAuthFilesData(options: UseAuthFilesDataOptions): UseAuthFiles
     handleDelete,
     handleDeleteAll,
     handleDownload,
-    handleStatusToggle
+    handleStatusToggle,
+    toggleSelect,
+    selectAllVisible,
+    deselectAll,
+    batchSetStatus,
+    batchDelete
   };
 }
diff --git a/src/i18n/locales/en.json b/src/i18n/locales/en.json
index dfa9ea4..de56b53 100644
--- a/src/i18n/locales/en.json
+++ b/src/i18n/locales/en.json
@@ -425,6 +425,15 @@
     "status_toggle_label": "Enabled",
     "status_enabled_success": "\"{{name}}\" enabled",
     "status_disabled_success": "\"{{name}}\" disabled",
+    "batch_status_success": "{{count}} files updated successfully",
+    "batch_status_partial": "{{success}} updated, {{failed}} failed",
+    "batch_delete_title": "Delete Selected Files",
+    "batch_delete_confirm": "Are you sure you want to delete {{count}} files?",
+    "batch_selected": "{{count}} selected",
+    "batch_select_all": "Select All",
+    "batch_deselect": "Deselect",
+    "batch_enable": "Enable",
+    "batch_disable": "Disable",
     "prefix_proxy_button": "Edit Auth Fields",
     "auth_field_editor_title": "Edit Auth Fields - {{name}}",
     "prefix_proxy_loading": "Loading auth file...",
diff --git a/src/i18n/locales/ru.json b/src/i18n/locales/ru.json
index 87aff1e..dc20afe 100644
--- a/src/i18n/locales/ru.json
+++ b/src/i18n/locales/ru.json
@@ -425,6 +425,15 @@
     "status_toggle_label": "Включено",
     "status_enabled_success": "\"{{name}}\" включён",
     "status_disabled_success": "\"{{name}}\" отключён",
+    "batch_status_success": "{{count}} файлов обновлено",
+    "batch_status_partial": "{{success}} обновлено, {{failed}} не удалось",
+    "batch_delete_title": "Удалить выбранные файлы",
+    "batch_delete_confirm": "Удалить {{count}} файлов?",
+    "batch_selected": "{{count}} выбрано",
+    "batch_select_all": "Выбрать все",
+    "batch_deselect": "Отменить",
+    "batch_enable": "Включить",
+    "batch_disable": "Отключить",
     "prefix_proxy_button": "Редактировать поля файла авторизации",
     "auth_field_editor_title": "Редактировать поля файла авторизации - {{name}}",
     "prefix_proxy_loading": "Загрузка файла авторизации...",
diff --git a/src/i18n/locales/zh-CN.json b/src/i18n/locales/zh-CN.json
index 043316d..29b2f32 100644
--- a/src/i18n/locales/zh-CN.json
+++ b/src/i18n/locales/zh-CN.json
@@ -425,6 +425,15 @@
     "status_toggle_label": "启用",
     "status_enabled_success": "已启用 \"{{name}}\"",
     "status_disabled_success": "已停用 \"{{name}}\"",
+    "batch_status_success": "已成功更新 {{count}} 个文件",
+    "batch_status_partial": "成功 {{success}} 个，失败 {{failed}} 个",
+    "batch_delete_title": "删除选中文件",
+    "batch_delete_confirm": "确定要删除 {{count}} 个文件吗？",
+    "batch_selected": "已选 {{count}} 项",
+    "batch_select_all": "全选",
+    "batch_deselect": "取消选择",
+    "batch_enable": "启用",
+    "batch_disable": "禁用",
     "prefix_proxy_button": "编辑认证文件字段",
     "auth_field_editor_title": "编辑认证文件字段 - {{name}}",
     "prefix_proxy_loading": "正在加载认证文件...",
diff --git a/src/pages/AuthFilesPage.module.scss b/src/pages/AuthFilesPage.module.scss
index 626ffb8..357a564 100644
--- a/src/pages/AuthFilesPage.module.scss
+++ b/src/pages/AuthFilesPage.module.scss
@@ -5,6 +5,7 @@
   display: flex;
   flex-direction: column;
   gap: $spacing-lg;
+  padding-bottom: calc(var(--auth-files-action-bar-height, 0px) + 16px + env(safe-area-inset-bottom));
 }
 
 .pageHeader {
@@ -497,6 +498,15 @@
   }
 }
 
+.fileCardSelected {
+  border-color: var(--primary-color);
+  box-shadow: 0 0 0 1px var(--primary-color);
+
+  &:hover {
+    border-color: var(--primary-color);
+  }
+}
+
 .fileCardDisabled {
   opacity: 0.6;
 
@@ -528,6 +538,15 @@
   min-height: 28px;
 }
 
+.selectionCheckbox {
+  width: 16px;
+  height: 16px;
+  margin: 0;
+  flex-shrink: 0;
+  accent-color: var(--primary-color);
+  cursor: pointer;
+}
+
 .typeBadge {
   padding: 4px 10px;
   border-radius: 12px;
@@ -878,6 +897,65 @@
   border-top: 1px solid var(--border-color);
 }
 
+.batchActionContainer {
+  position: fixed;
+  left: var(--content-center-x, 50%);
+  bottom: calc(16px + env(safe-area-inset-bottom));
+  transform: translateX(-50%);
+  z-index: 50;
+  width: min(960px, calc(100vw - 24px));
+}
+
+.batchActionBar {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: $spacing-sm;
+  padding: 10px 12px;
+  border-radius: $radius-lg;
+  border: 1px solid color-mix(in srgb, var(--border-color) 70%, transparent);
+  background: color-mix(in srgb, var(--bg-primary) 84%, transparent);
+  backdrop-filter: blur(12px);
+  -webkit-backdrop-filter: blur(12px);
+  box-shadow: var(--shadow-lg);
+}
+
+.batchActionLeft,
+.batchActionRight {
+  display: flex;
+  align-items: center;
+  gap: $spacing-xs;
+  flex-wrap: wrap;
+}
+
+.batchActionRight {
+  justify-content: flex-end;
+}
+
+.batchSelectionText {
+  font-size: 13px;
+  font-weight: 600;
+  color: var(--text-primary);
+  margin-right: 2px;
+}
+
+@include mobile {
+  .batchActionContainer {
+    width: calc(100vw - 16px);
+    bottom: calc(12px + env(safe-area-inset-bottom));
+  }
+
+  .batchActionBar {
+    flex-direction: column;
+    align-items: stretch;
+  }
+
+  .batchActionLeft,
+  .batchActionRight {
+    justify-content: center;
+  }
+}
+
 .pageInfo {
   font-size: 13px;
   color: var(--text-secondary);
diff --git a/src/pages/AuthFilesPage.tsx b/src/pages/AuthFilesPage.tsx
index 3cd39e2..a9a2079 100644
--- a/src/pages/AuthFilesPage.tsx
+++ b/src/pages/AuthFilesPage.tsx
@@ -1,4 +1,5 @@
-import { useCallback, useEffect, useMemo, useState, type ChangeEvent } from 'react';
+import { useCallback, useEffect, useLayoutEffect, useMemo, useRef, useState, type ChangeEvent } from 'react';
+import { createPortal } from 'react-dom';
 import { useTranslation } from 'react-i18next';
 import { useNavigate } from 'react-router-dom';
 import { useInterval } from '@/hooks/useInterval';
@@ -16,6 +17,7 @@ import {
   clampCardPageSize,
   getTypeColor,
   getTypeLabel,
+  isRuntimeOnlyAuthFile,
   normalizeProviderKey,
   type QuotaProviderType,
   type ResolvedTheme
@@ -54,10 +56,13 @@ export function AuthFilesPage() {
   const [detailModalOpen, setDetailModalOpen] = useState(false);
   const [selectedFile, setSelectedFile] = useState<AuthFileItem | null>(null);
   const [viewMode, setViewMode] = useState<'diagram' | 'list'>('list');
+  const floatingBatchActionsRef = useRef<HTMLDivElement>(null);
 
   const { keyStats, usageDetails, loadKeyStats } = useAuthFilesStats();
   const {
     files,
+    selectedFiles,
+    selectionCount,
     loading,
     error,
     uploading,
@@ -71,7 +76,12 @@ export function AuthFilesPage() {
     handleDelete,
     handleDeleteAll,
     handleDownload,
-    handleStatusToggle
+    handleStatusToggle,
+    toggleSelect,
+    selectAllVisible,
+    deselectAll,
+    batchSetStatus,
+    batchDelete
   } = useAuthFilesData({ refreshKeyStats: loadKeyStats });
 
   const statusBarCache = useAuthFilesStatusBarCache(files, usageDetails);
@@ -240,6 +250,11 @@ export function AuthFilesPage() {
   const currentPage = Math.min(page, totalPages);
   const start = (currentPage - 1) * pageSize;
   const pageItems = filtered.slice(start, start + pageSize);
+  const selectablePageItems = useMemo(
+    () => pageItems.filter((file) => !isRuntimeOnlyAuthFile(file)),
+    [pageItems]
+  );
+  const selectedNames = useMemo(() => Array.from(selectedFiles), [selectedFiles]);
 
   const showDetails = (file: AuthFileItem) => {
     setSelectedFile(file);
@@ -289,6 +304,33 @@ export function AuthFilesPage() {
     [filter, navigate]
   );
 
+  useLayoutEffect(() => {
+    if (typeof window === 'undefined') return;
+
+    const actionsEl = floatingBatchActionsRef.current;
+    if (!actionsEl) {
+      document.documentElement.style.removeProperty('--auth-files-action-bar-height');
+      return;
+    }
+
+    const updatePadding = () => {
+      const height = actionsEl.getBoundingClientRect().height;
+      document.documentElement.style.setProperty('--auth-files-action-bar-height', `${height}px`);
+    };
+
+    updatePadding();
+    window.addEventListener('resize', updatePadding);
+
+    const ro = typeof ResizeObserver === 'undefined' ? null : new ResizeObserver(updatePadding);
+    ro?.observe(actionsEl);
+
+    return () => {
+      ro?.disconnect();
+      window.removeEventListener('resize', updatePadding);
+      document.documentElement.style.removeProperty('--auth-files-action-bar-height');
+    };
+  }, [selectionCount]);
+
   const renderFilterTags = () => (
     <div className={styles.filterTags}>
       {existingTypes.map((type) => {
@@ -419,6 +461,7 @@ export function AuthFilesPage() {
               <AuthFileCard
                 key={file.name}
                 file={file}
+                selected={selectedFiles.has(file.name)}
                 resolvedTheme={resolvedTheme}
                 disableControls={disableControls}
                 deleting={deleting}
@@ -432,6 +475,7 @@ export function AuthFilesPage() {
                 onOpenPrefixProxyEditor={openPrefixProxyEditor}
                 onDelete={handleDelete}
                 onToggleStatus={handleStatusToggle}
+                onToggleSelect={toggleSelect}
               />
             ))}
           </div>
@@ -520,6 +564,57 @@ export function AuthFilesPage() {
         onSave={handlePrefixProxySave}
         onChange={handlePrefixProxyChange}
       />
+
+      {selectionCount > 0 && typeof document !== 'undefined'
+        ? createPortal(
+            <div className={styles.batchActionContainer} ref={floatingBatchActionsRef}>
+              <div className={styles.batchActionBar}>
+                <div className={styles.batchActionLeft}>
+                  <span className={styles.batchSelectionText}>
+                    {t('auth_files.batch_selected', { count: selectionCount })}
+                  </span>
+                  <Button
+                    variant="secondary"
+                    size="sm"
+                    onClick={() => selectAllVisible(pageItems)}
+                    disabled={selectablePageItems.length === 0}
+                  >
+                    {t('auth_files.batch_select_all')}
+                  </Button>
+                  <Button variant="ghost" size="sm" onClick={deselectAll}>
+                    {t('auth_files.batch_deselect')}
+                  </Button>
+                </div>
+                <div className={styles.batchActionRight}>
+                  <Button
+                    size="sm"
+                    onClick={() => batchSetStatus(selectedNames, true)}
+                    disabled={disableControls || selectedNames.length === 0}
+                  >
+                    {t('auth_files.batch_enable')}
+                  </Button>
+                  <Button
+                    variant="secondary"
+                    size="sm"
+                    onClick={() => batchSetStatus(selectedNames, false)}
+                    disabled={disableControls || selectedNames.length === 0}
+                  >
+                    {t('auth_files.batch_disable')}
+                  </Button>
+                  <Button
+                    variant="danger"
+                    size="sm"
+                    onClick={() => batchDelete(selectedNames)}
+                    disabled={disableControls || selectedNames.length === 0}
+                  >
+                    {t('common.delete')}
+                  </Button>
+                </div>
+              </div>
+            </div>,
+            document.body
+          )
+        : null}
     </div>
   );
 }