diff --git a/src/__tests__/unit/InstalledAppsModal.test.ts b/src/__tests__/unit/InstalledAppsModal.test.ts
new file mode 100644
index 00000000..2659798b
--- /dev/null
+++ b/src/__tests__/unit/InstalledAppsModal.test.ts
@@ -0,0 +1,25 @@
+import { render, screen } from "@testing-library/vue";
+import { describe, expect, it } from "vitest";
+
+import InstalledAppsModal from "@/components/InstalledAppsModal.vue";
+
+describe("InstalledAppsModal", () => {
+  it("keeps scroll chaining inside the modal list", () => {
+    const { container } = render(InstalledAppsModal, {
+      props: {
+        show: true,
+        apps: [],
+        loading: false,
+        error: "",
+        activeOrigin: "spark",
+        storeFilter: "both",
+        apmAvailable: true,
+      },
+    });
+
+    expect(screen.getByText("已安装应用")).toBeTruthy();
+    const scrollContainer = container.querySelector(".overflow-y-auto");
+
+    expect(scrollContainer?.className).toContain("overscroll-contain");
+  });
+});
diff --git a/src/components/InstalledAppsModal.vue b/src/components/InstalledAppsModal.vue
index 8beae29c..3275342e 100644
--- a/src/components/InstalledAppsModal.vue
+++ b/src/components/InstalledAppsModal.vue
@@ -78,7 +78,7 @@
         </div>
 
         <div
-          class="flex-1 overflow-y-auto scrollbar-nowidth scrollbar-thumb-slate-200 dark:scrollbar-thumb-slate-700 p-6 space-y-4"
+          class="flex-1 overflow-y-auto overscroll-contain scrollbar-nowidth scrollbar-thumb-slate-200 dark:scrollbar-thumb-slate-700 p-6 space-y-4"
         >
           <div
             v-if="loading"