diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d61997f5c8..3585db45b99 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- macOS/Menu bar: stop reusing the injector delegate for the "Usage cost (30 days)" submenu to prevent recursive submenu injection loops when opening cost history. (#25341) Thanks @yingchunbai.
 - Control UI/Chat images: harden image-open clicks against reverse tabnabbing by using opener isolation (`noopener,noreferrer` plus `window.opener = null`). (#18685) Thanks @Mariana-Codebase.
 - Security/iOS deep links: require local confirmation (or trusted key) before forwarding `openclaw://agent` requests from iOS to gateway `agent.request`, and strip unkeyed delivery-routing fields to reduce exfiltration risk. This ships in the next npm release. Thanks @GCXWLP for reporting.
 - Security/Export session HTML: escape raw HTML markdown tokens in the exported session viewer, harden tree/header metadata rendering against HTML injection, and sanitize image data-URL MIME types in export output to prevent stored XSS when opening exported HTML files. This ships in the next npm release. Thanks @allsmog for reporting.
diff --git a/apps/macos/Sources/OpenClaw/MenuSessionsInjector.swift b/apps/macos/Sources/OpenClaw/MenuSessionsInjector.swift
index fde2d0e0bdb..eb6271d0a8c 100644
--- a/apps/macos/Sources/OpenClaw/MenuSessionsInjector.swift
+++ b/apps/macos/Sources/OpenClaw/MenuSessionsInjector.swift
@@ -446,6 +446,8 @@ extension MenuSessionsInjector {
 
     private func buildUsageOverflowMenu(rows: [UsageRow], width: CGFloat) -> NSMenu {
         let menu = NSMenu()
+        // Keep submenu delegate nil: reusing the status-menu delegate here causes
+        // recursive reinjection whenever this submenu is opened.
         for row in rows {
             let item = NSMenuItem()
             item.tag = self.tag
@@ -1225,6 +1227,12 @@ extension MenuSessionsInjector {
         self.usageCacheUpdatedAt = Date()
     }
 
+    func setTestingCostUsageSummary(_ summary: GatewayCostUsageSummary?, errorText: String? = nil) {
+        self.cachedCostSummary = summary
+        self.cachedCostErrorText = errorText
+        self.costCacheUpdatedAt = Date()
+    }
+
     func injectForTesting(into menu: NSMenu) {
         self.inject(into: menu)
     }
diff --git a/apps/macos/Tests/OpenClawIPCTests/MenuSessionsInjectorTests.swift b/apps/macos/Tests/OpenClawIPCTests/MenuSessionsInjectorTests.swift
index 8395ed145ce..ff63673b9e0 100644
--- a/apps/macos/Tests/OpenClawIPCTests/MenuSessionsInjectorTests.swift
+++ b/apps/macos/Tests/OpenClawIPCTests/MenuSessionsInjectorTests.swift
@@ -93,4 +93,45 @@ struct MenuSessionsInjectorTests {
         #expect(menu.items.contains { $0.tag == 9_415_557 })
         #expect(menu.items.contains { $0.tag == 9_415_557 && $0.isSeparatorItem })
     }
+
+    @Test func costUsageSubmenuDoesNotUseInjectorDelegate() {
+        let injector = MenuSessionsInjector()
+        injector.setTestingControlChannelConnected(true)
+
+        let summary = GatewayCostUsageSummary(
+            updatedAt: Date().timeIntervalSince1970 * 1000,
+            days: 1,
+            daily: [
+                GatewayCostUsageDay(
+                    date: "2026-02-24",
+                    input: 10,
+                    output: 20,
+                    cacheRead: 0,
+                    cacheWrite: 0,
+                    totalTokens: 30,
+                    totalCost: 0.12,
+                    missingCostEntries: 0),
+            ],
+            totals: GatewayCostUsageTotals(
+                input: 10,
+                output: 20,
+                cacheRead: 0,
+                cacheWrite: 0,
+                totalTokens: 30,
+                totalCost: 0.12,
+                missingCostEntries: 0))
+        injector.setTestingCostUsageSummary(summary, errorText: nil)
+
+        let menu = NSMenu()
+        menu.addItem(NSMenuItem(title: "Header", action: nil, keyEquivalent: ""))
+        menu.addItem(.separator())
+        menu.addItem(NSMenuItem(title: "Send Heartbeats", action: nil, keyEquivalent: ""))
+
+        injector.injectForTesting(into: menu)
+
+        let usageCostItem = menu.items.first { $0.title == "Usage cost (30 days)" }
+        #expect(usageCostItem != nil)
+        #expect(usageCostItem?.submenu != nil)
+        #expect(usageCostItem?.submenu?.delegate == nil)
+    }
 }