diff --git a/apps/api/src/index.ts b/apps/api/src/index.ts
index b9ff1044..06bd2daa 100644
--- a/apps/api/src/index.ts
+++ b/apps/api/src/index.ts
@@ -696,7 +696,7 @@ app.get("/api/v1/memos", async (c) => {
   const notebookId = c.req.query("notebookId");
   const q = c.req.query("q")?.trim();
   const includeTrash = c.req.query("trash") === "1";
-  const limit = clampNumber(Number(c.req.query("limit") ?? 80), 1, 100);
+  const limit = clampNumber(Number(c.req.query("limit") ?? 5000), 1, 5000);
   const deletedClause = includeTrash ? "m.is_deleted = 1" : "m.is_deleted = 0";
 
   if (q) {
@@ -704,57 +704,97 @@ app.get("/api/v1/memos", async (c) => {
     const likeQuery = `%${escapeLike(q)}%`;
 
     if (ftsQuery) {
-      const rows = await c.env.DB.prepare(
-        `WITH raw_matches(memo_id, rank) AS (
-           SELECT memo_id, bm25(memos_fts)
-           FROM memos_fts
-           WHERE memos_fts MATCH ?
+      const [rows, totalRow] = await Promise.all([
+        c.env.DB.prepare(
+          `WITH raw_matches(memo_id, rank) AS (
+             SELECT memo_id, bm25(memos_fts)
+             FROM memos_fts
+             WHERE memos_fts MATCH ?
 
-           UNION ALL
+             UNION ALL
 
-           SELECT m.id, 100.0
-           FROM memos m
+             SELECT m.id, 100.0
+             FROM memos m
+             INNER JOIN memo_contents c ON c.memo_id = m.id
+             WHERE m.title LIKE ? ESCAPE '\\'
+                OR c.content_text LIKE ? ESCAPE '\\'
+                OR m.tags_json LIKE ? ESCAPE '\\'
+           ),
+           search_matches AS (
+             SELECT memo_id, MIN(rank) AS rank
+             FROM raw_matches
+             GROUP BY memo_id
+           )
+           SELECT m.id, m.notebook_id, m.title, m.excerpt, m.tags_json, m.is_pinned,
+                  m.is_archived, m.is_deleted, m.created_at, m.updated_at, m.deleted_at, c.revision
+           FROM search_matches s
+           INNER JOIN memos m ON m.id = s.memo_id
            INNER JOIN memo_contents c ON c.memo_id = m.id
-           WHERE m.title LIKE ? ESCAPE '\\'
-              OR c.content_text LIKE ? ESCAPE '\\'
-              OR m.tags_json LIKE ? ESCAPE '\\'
-         ),
-         search_matches AS (
-           SELECT memo_id, MIN(rank) AS rank
-           FROM raw_matches
-           GROUP BY memo_id
-         )
-         SELECT m.id, m.notebook_id, m.title, m.excerpt, m.tags_json, m.is_pinned,
-                m.is_archived, m.is_deleted, m.created_at, m.updated_at, m.deleted_at, c.revision
-         FROM search_matches s
-         INNER JOIN memos m ON m.id = s.memo_id
-         INNER JOIN memo_contents c ON c.memo_id = m.id
-         WHERE ${deletedClause}
-           AND (? IS NULL OR m.notebook_id = ?)
-         ORDER BY s.rank ASC, m.is_pinned DESC, m.updated_at DESC
-         LIMIT ?`
-      )
-        .bind(ftsQuery, likeQuery, likeQuery, likeQuery, notebookId ?? null, notebookId ?? null, limit)
-        .all<MemoSummaryRow>();
+           WHERE ${deletedClause}
+             AND (? IS NULL OR m.notebook_id = ?)
+           ORDER BY s.rank ASC, m.is_pinned DESC, m.updated_at DESC
+           LIMIT ?`
+        )
+          .bind(ftsQuery, likeQuery, likeQuery, likeQuery, notebookId ?? null, notebookId ?? null, limit)
+          .all<MemoSummaryRow>(),
+        c.env.DB.prepare(
+          `WITH raw_matches(memo_id) AS (
+             SELECT memo_id
+             FROM memos_fts
+             WHERE memos_fts MATCH ?
 
-      return c.json({ memos: rows.results.map(mapMemoSummary) });
+             UNION ALL
+
+             SELECT m.id
+             FROM memos m
+             INNER JOIN memo_contents c ON c.memo_id = m.id
+             WHERE m.title LIKE ? ESCAPE '\\'
+                OR c.content_text LIKE ? ESCAPE '\\'
+                OR m.tags_json LIKE ? ESCAPE '\\'
+           ),
+           search_matches AS (
+             SELECT memo_id
+             FROM raw_matches
+             GROUP BY memo_id
+           )
+           SELECT COUNT(*) AS count
+           FROM search_matches s
+           INNER JOIN memos m ON m.id = s.memo_id
+           WHERE ${deletedClause}
+             AND (? IS NULL OR m.notebook_id = ?)`
+        )
+          .bind(ftsQuery, likeQuery, likeQuery, likeQuery, notebookId ?? null, notebookId ?? null)
+          .first<{ count: number }>(),
+      ]);
+
+      return c.json({ memos: rows.results.map(mapMemoSummary), totalCount: totalRow?.count ?? rows.results.length });
     }
   }
 
-  const rows = await c.env.DB.prepare(
-    `SELECT m.id, m.notebook_id, m.title, m.excerpt, m.tags_json, m.is_pinned,
-            m.is_archived, m.is_deleted, m.created_at, m.updated_at, m.deleted_at, c.revision
-     FROM memos m
-     INNER JOIN memo_contents c ON c.memo_id = m.id
-     WHERE ${deletedClause}
-       AND (? IS NULL OR m.notebook_id = ?)
-     ORDER BY ${includeTrash ? "m.deleted_at DESC," : "m.is_pinned DESC,"} m.updated_at DESC
-     LIMIT ?`
-  )
-    .bind(notebookId ?? null, notebookId ?? null, limit)
-    .all<MemoSummaryRow>();
+  const [rows, totalRow] = await Promise.all([
+    c.env.DB.prepare(
+      `SELECT m.id, m.notebook_id, m.title, m.excerpt, m.tags_json, m.is_pinned,
+              m.is_archived, m.is_deleted, m.created_at, m.updated_at, m.deleted_at, c.revision
+       FROM memos m
+       INNER JOIN memo_contents c ON c.memo_id = m.id
+       WHERE ${deletedClause}
+         AND (? IS NULL OR m.notebook_id = ?)
+       ORDER BY ${includeTrash ? "m.deleted_at DESC," : "m.is_pinned DESC,"} m.updated_at DESC
+       LIMIT ?`
+    )
+      .bind(notebookId ?? null, notebookId ?? null, limit)
+      .all<MemoSummaryRow>(),
+    c.env.DB.prepare(
+      `SELECT COUNT(*) AS count
+       FROM memos m
+       WHERE ${deletedClause}
+         AND (? IS NULL OR m.notebook_id = ?)`
+    )
+      .bind(notebookId ?? null, notebookId ?? null)
+      .first<{ count: number }>(),
+  ]);
 
-  return c.json({ memos: rows.results.map(mapMemoSummary) });
+  return c.json({ memos: rows.results.map(mapMemoSummary), totalCount: totalRow?.count ?? rows.results.length });
 });
 
 app.post("/api/v1/memos", zValidator("json", MemoCreateSchema), async (c) => {
diff --git a/apps/web/src/components/MemoListPane.tsx b/apps/web/src/components/MemoListPane.tsx
index 11c5fb5d..5c66b447 100644
--- a/apps/web/src/components/MemoListPane.tsx
+++ b/apps/web/src/components/MemoListPane.tsx
@@ -304,6 +304,7 @@ export const MemoListPane = ({
   notebooks,
   notebook,
   memos,
+  totalMemoCount,
   selectedMemoId,
   selectedMemoIds,
   selectionMode,
@@ -364,6 +365,7 @@ export const MemoListPane = ({
   notebooks: Notebook[];
   notebook: Notebook | null;
   memos: MemoSummary[];
+  totalMemoCount: number;
   selectedMemoId: string | null;
   selectedMemoIds: Set<string>;
   selectionMode: boolean;
@@ -445,7 +447,7 @@ export const MemoListPane = ({
 
   const listTitle = view === "trash" ? "回收站" : notebook?.name ?? "全部笔记";
   const listContextLabel = view === "trash" ? "已删除笔记" : notebook ? "当前笔记本" : "所有笔记本";
-  const listCountLabel = `${filteredMemos.length}${filterMode !== "all" ? ` / ${memos.length}` : ""} ${
+  const listCountLabel = `${filteredMemos.length}${filterMode !== "all" || filteredMemos.length !== totalMemoCount ? ` / ${totalMemoCount}` : ""} ${
     view === "trash" ? "条已删除" : "条笔记"
   }`;
   const selectionCountLabel = getSelectionCountLabel(selectedMemoIds.size);
diff --git a/apps/web/src/components/WorkspaceApp.tsx b/apps/web/src/components/WorkspaceApp.tsx
index 1c0378d6..fab29a9d 100644
--- a/apps/web/src/components/WorkspaceApp.tsx
+++ b/apps/web/src/components/WorkspaceApp.tsx
@@ -143,8 +143,9 @@ const cacheMemoDetail = (queryClient: QueryClient, memo: MemoDetail, view: MemoV
 const prependMemoSummaryToList = (queryClient: QueryClient, queryKey: readonly unknown[], memo: MemoDetail) => {
   const summary = memoToSummary(memo);
 
-  queryClient.setQueryData<{ memos: MemoSummary[] }>(queryKey, (current) => ({
+  queryClient.setQueryData<{ memos: MemoSummary[]; totalCount?: number }>(queryKey, (current) => ({
     memos: [summary, ...(current?.memos ?? []).filter((item) => item.id !== memo.id)],
+    totalCount: (current?.totalCount ?? current?.memos.length ?? 0) + 1,
   }));
 };
 
@@ -918,6 +919,7 @@ export const WorkspaceApp = ({
   });
 
   const memos = memosQuery.data?.memos ?? [];
+  const totalMemoCount = memosQuery.data?.totalCount ?? memos.length;
   const selectedMemoIndex = selectedMemoId ? memos.findIndex((memo) => memo.id === selectedMemoId) : -1;
   const previousMemoId = selectedMemoIndex > 0 ? memos[selectedMemoIndex - 1]?.id : null;
   const nextMemoId =
@@ -1040,12 +1042,13 @@ export const WorkspaceApp = ({
       ]);
 
       const memoIdSet = new Set(memoIds);
-      const previousMemoQueries = queryClient.getQueriesData<{ memos: MemoSummary[] }>({ queryKey: ["memos"] });
+      const previousMemoQueries = queryClient.getQueriesData<{ memos: MemoSummary[]; totalCount?: number }>({ queryKey: ["memos"] });
       const previousMemoDetailQueries = queryClient.getQueriesData<{ memo: MemoDetail }>({ queryKey: ["memo"] });
 
-      queryClient.setQueriesData<{ memos: MemoSummary[] }>({ queryKey: ["memos"] }, (current) =>
+      queryClient.setQueriesData<{ memos: MemoSummary[]; totalCount?: number }>({ queryKey: ["memos"] }, (current) =>
         current
           ? {
+              ...current,
               memos: current.memos.map((memo) => (memoIdSet.has(memo.id) ? { ...memo, isPinned } : memo)),
             }
           : current
@@ -1994,6 +1997,7 @@ export const WorkspaceApp = ({
               notebooks={notebooks}
               view={memoView}
               memos={memos}
+              totalMemoCount={totalMemoCount}
               selectedMemoId={selectedMemoId}
               selectedMemoIds={selectedMemoIds}
               selectionMode={memoSelectionModeActive}
diff --git a/apps/web/src/lib/api.ts b/apps/web/src/lib/api.ts
index f4bd23c7..4f4853fa 100644
--- a/apps/web/src/lib/api.ts
+++ b/apps/web/src/lib/api.ts
@@ -19,6 +19,7 @@ type ListNotebooksResponse = {
 
 type ListMemosResponse = {
   memos: MemoSummary[];
+  totalCount: number;
 };
 
 type ListMemoRevisionsResponse = {
diff --git a/docs/openapi.json b/docs/openapi.json
index 66551e80..d83f9224 100644
--- a/docs/openapi.json
+++ b/docs/openapi.json
@@ -377,8 +377,8 @@
             "schema": {
               "type": "integer",
               "minimum": 1,
-              "maximum": 100,
-              "default": 80
+              "maximum": 5000,
+              "default": 5000
             }
           }
         ],
@@ -395,9 +395,13 @@
                       "items": {
                         "$ref": "#/components/schemas/MemoSummary"
                       }
+                    },
+                    "totalCount": {
+                      "type": "integer",
+                      "minimum": 0
                     }
                   },
-                  "required": ["memos"]
+                  "required": ["memos", "totalCount"]
                 }
               }
             }