diff --git a/.changeset/web-escape-dialog-no-interrupt.md b/.changeset/web-escape-dialog-no-interrupt.md
new file mode 100644
index 000000000..64c1ca23d
--- /dev/null
+++ b/.changeset/web-escape-dialog-no-interrupt.md
@@ -0,0 +1,5 @@
+---
+"@moonshot-ai/kimi-code": patch
+---
+
+web: Don't interrupt the running prompt when Escape closes an open dialog (such as the session search popup).
diff --git a/apps/kimi-web/src/components/chat/ConversationPane.vue b/apps/kimi-web/src/components/chat/ConversationPane.vue
index 7c7f47511..0f3fe0a2d 100644
--- a/apps/kimi-web/src/components/chat/ConversationPane.vue
+++ b/apps/kimi-web/src/components/chat/ConversationPane.vue
@@ -16,6 +16,7 @@ import Spinner from '../ui/Spinner.vue';
 import Tooltip from '../ui/Tooltip.vue';
 import { getVisibleWorkspaces } from '../../lib/workspacePicker';
 import { safeRemove, STORAGE_KEYS } from '../../lib/storage';
+import { openDialogCount } from '../../composables/dialogStack';
 
 const { t, locale } = useI18n();
 
@@ -1026,6 +1027,10 @@ function handleInterrupt(): void {
 }
 
 function onKeyDown(event: KeyboardEvent): void {
+  // A modal dialog open on top of the conversation owns Escape (it closes
+  // itself); don't also interrupt the running prompt underneath. Mirrors the
+  // `anyOverlayOpen` guard in App.vue's global capture-phase Escape handler (#1538).
+  if (openDialogCount.value > 0) return;
   if (event.key === 'Escape' && (props.running || props.sending)) {
     event.preventDefault();
     handleInterrupt();