diff --git a/apps/web/src/components/pure/workspace-slider-bar/WorkspaceSelector/WorkspaceSelector.tsx b/apps/web/src/components/pure/workspace-slider-bar/WorkspaceSelector/WorkspaceSelector.tsx
index cd7a494419..5113f477d7 100644
--- a/apps/web/src/components/pure/workspace-slider-bar/WorkspaceSelector/WorkspaceSelector.tsx
+++ b/apps/web/src/components/pure/workspace-slider-bar/WorkspaceSelector/WorkspaceSelector.tsx
@@ -2,6 +2,7 @@ import { WorkspaceAvatar } from '@affine/component/workspace-avatar';
 import { CloudWorkspaceIcon, LocalWorkspaceIcon } from '@blocksuite/icons';
 import { useBlockSuiteWorkspaceName } from '@toeverything/hooks/use-block-suite-workspace-name';
 import type React from 'react';
+import { useCallback } from 'react';
 
 import { useCurrentWorkspace } from '../../../../hooks/current/use-current-workspace';
 import type { AllWorkspace } from '../../../../shared';
@@ -18,6 +19,10 @@ export type WorkspaceSelectorProps = {
   onClick: () => void;
 };
 
+/**
+ * @todo-Doma Co-locate WorkspaceListModal with {@link WorkspaceSelector},
+ *            because it's never used elsewhere.
+ */
 export const WorkspaceSelector: React.FC<WorkspaceSelectorProps> = ({
   currentWorkspace,
   onClick,
@@ -26,8 +31,28 @@ export const WorkspaceSelector: React.FC<WorkspaceSelectorProps> = ({
     currentWorkspace?.blockSuiteWorkspace ?? null
   );
   const [workspace] = useCurrentWorkspace();
+
+  // Open dialog when `Enter` or `Space` pressed
+  // TODO-Doma Refactor with `@radix-ui/react-dialog` or other libraries that handle these out of the box and be accessible by default
+  const handleKeyDown = useCallback(
+    (e: React.KeyboardEvent) => {
+      if (e.key === 'Enter' || e.key === ' ') {
+        e.preventDefault();
+        // TODO-Doma Rename this callback to `onOpenDialog` or something to reduce ambiguity.
+        onClick();
+      }
+    },
+    [onClick]
+  );
+
   return (
-    <StyledSelectorContainer onClick={onClick} data-testid="current-workspace">
+    <StyledSelectorContainer
+      role="button"
+      tabIndex={0}
+      onClick={onClick}
+      onKeyDown={handleKeyDown}
+      data-testid="current-workspace"
+    >
       <WorkspaceAvatar
         data-testid="workspace-avatar"
         className={workspaceAvatarStyle}
diff --git a/apps/web/src/components/pure/workspace-slider-bar/favorite/index.tsx b/apps/web/src/components/pure/workspace-slider-bar/favorite/index.tsx
index 82756ba3e9..12f8dbbdc8 100644
--- a/apps/web/src/components/pure/workspace-slider-bar/favorite/index.tsx
+++ b/apps/web/src/components/pure/workspace-slider-bar/favorite/index.tsx
@@ -36,14 +36,6 @@ export const Favorite = ({
           (currentWorkspaceId && paths.favorite(currentWorkspaceId))
         }
       >
-        <StyledCollapseButton
-          onClick={useCallback(() => {
-            setOpenSubFavorite(!showSubFavorite);
-          }, [showSubFavorite])}
-          collapse={showSubFavorite}
-        >
-          <ArrowDownSmallIcon />
-        </StyledCollapseButton>
         <StyledLink
           href={{
             pathname: currentWorkspaceId && paths.favorite(currentWorkspaceId),
@@ -52,6 +44,14 @@ export const Favorite = ({
           <FavoriteIcon />
           {t['Favorites']()}
         </StyledLink>
+        <StyledCollapseButton
+          onClick={useCallback(() => {
+            setOpenSubFavorite(!showSubFavorite);
+          }, [showSubFavorite])}
+          collapse={showSubFavorite}
+        >
+          <ArrowDownSmallIcon />
+        </StyledCollapseButton>
       </StyledListItem>
       <FavoriteList
         currentPageId={currentPageId}
diff --git a/apps/web/src/components/pure/workspace-slider-bar/shared-styles.ts b/apps/web/src/components/pure/workspace-slider-bar/shared-styles.ts
index 28a7f26879..7b7f6c6f3c 100644
--- a/apps/web/src/components/pure/workspace-slider-bar/shared-styles.ts
+++ b/apps/web/src/components/pure/workspace-slider-bar/shared-styles.ts
@@ -63,6 +63,9 @@ export const StyledCollapseButton = styled('button')<{
     ':hover': {
       opacity: '1',
     },
+    ':focus-visible': {
+      outline: '-webkit-focus-ring-color auto 1px',
+    },
   };
 });
 
diff --git a/apps/web/src/components/root-app-sidebar/index.tsx b/apps/web/src/components/root-app-sidebar/index.tsx
index aa689b153f..8234204880 100644
--- a/apps/web/src/components/root-app-sidebar/index.tsx
+++ b/apps/web/src/components/root-app-sidebar/index.tsx
@@ -17,7 +17,8 @@ import {
 import type { Page } from '@blocksuite/store';
 import { useAtomValue } from 'jotai';
 import type { ReactElement, UIEvent } from 'react';
-import React, { useCallback, useEffect, useState } from 'react';
+import type React from 'react';
+import { useCallback, useEffect, useState } from 'react';
 
 import type { AllWorkspace } from '../../shared';
 import ChangeLog from '../pure/workspace-slider-bar/changeLog';
@@ -80,6 +81,16 @@ export const RootAppSidebar = ({
     }
   }, [sidebarOpen]);
   const [ref, setRef] = useState<HTMLElement | null>(null);
+
+  const handleQuickSearchButtonKeyDown = useCallback(
+    (e: React.KeyboardEvent) => {
+      if (e.key === 'Enter' || e.key === ' ') {
+        e.preventDefault();
+        onOpenQuickSearchModal();
+      }
+    },
+    [onOpenQuickSearchModal]
+  );
   return (
     <>
       <AppSidebar
@@ -104,8 +115,11 @@ export const RootAppSidebar = ({
             onClick={useCallback(() => {
               onOpenQuickSearchModal();
             }, [onOpenQuickSearchModal])}
+            onKeyDown={handleQuickSearchButtonKeyDown}
           >
             <div
+              role="button"
+              tabIndex={0}
               style={{
                 display: 'flex',
                 flex: 1,