diff --git a/extensions/memory-core/src/memory/manager-db.ts b/extensions/memory-core/src/memory/manager-db.ts
index 234c9005b5e..1fe0f737347 100644
--- a/extensions/memory-core/src/memory/manager-db.ts
+++ b/extensions/memory-core/src/memory/manager-db.ts
@@ -7,6 +7,8 @@ import {
   requireNodeSqlite,
 } from "openclaw/plugin-sdk/memory-core-host-engine-storage";
 
+export const MEMORY_SQLITE_BUSY_TIMEOUT_MS = 30_000;
+
 export function openMemoryDatabaseAtPath(dbPath: string, allowExtension: boolean): DatabaseSync {
   const dir = path.dirname(dbPath);
   ensureDir(dir);
@@ -16,7 +18,7 @@ export function openMemoryDatabaseAtPath(dbPath: string, allowExtension: boolean
   // busy_timeout is per-connection and resets to 0 on restart.
   // Set it on every open so concurrent processes retry instead of
   // failing immediately with SQLITE_BUSY.
-  db.exec("PRAGMA busy_timeout = 5000");
+  db.exec(`PRAGMA busy_timeout = ${MEMORY_SQLITE_BUSY_TIMEOUT_MS}`);
   return db;
 }
 
diff --git a/extensions/memory-core/src/memory/manager.readonly-recovery.test.ts b/extensions/memory-core/src/memory/manager.readonly-recovery.test.ts
index 1faab2c7898..83e44034f2a 100644
--- a/extensions/memory-core/src/memory/manager.readonly-recovery.test.ts
+++ b/extensions/memory-core/src/memory/manager.readonly-recovery.test.ts
@@ -4,7 +4,7 @@ import path from "node:path";
 import type { DatabaseSync } from "node:sqlite";
 import type { OpenClawConfig } from "openclaw/plugin-sdk/memory-core-host-engine-foundation";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
-import { openMemoryDatabaseAtPath } from "./manager-db.js";
+import { MEMORY_SQLITE_BUSY_TIMEOUT_MS, openMemoryDatabaseAtPath } from "./manager-db.js";
 import {
   _createMemorySyncControlConfigForTests,
   enqueueMemoryTargetedSessionSync,
@@ -219,7 +219,7 @@ describe("memory manager readonly recovery", () => {
       | { busy_timeout?: number; timeout?: number }
       | undefined;
     const busyTimeout = row?.busy_timeout ?? row?.timeout;
-    expect(busyTimeout).toBe(5000);
+    expect(busyTimeout).toBe(MEMORY_SQLITE_BUSY_TIMEOUT_MS);
     db.close();
   });
 
diff --git a/extensions/memory-core/src/memory/qmd-manager.ts b/extensions/memory-core/src/memory/qmd-manager.ts
index 1fa087fd41a..a10e5d43863 100644
--- a/extensions/memory-core/src/memory/qmd-manager.ts
+++ b/extensions/memory-core/src/memory/qmd-manager.ts
@@ -2218,7 +2218,7 @@ export class QmdMemoryManager implements MemorySearchManager {
     this.db = new DatabaseSync(this.indexPath, { readOnly: true });
     // busy_timeout is per-connection; set it on every open so concurrent
     // processes retry instead of failing immediately with SQLITE_BUSY.
-    // Use a lower value than the write path (5 s) because this read-only
+    // Use a lower value than the memory write path because this read-only
     // connection runs synchronous queries on the main thread via DatabaseSync.
     // In WAL mode readers rarely block, so 1 s is a safe upper bound.
     this.db.exec("PRAGMA busy_timeout = 1000");