diff --git a/src/components/modal/nz-confirm.component.ts b/src/components/modal/nz-confirm.component.ts
index 79cbf9ee8e..21863e8646 100644
--- a/src/components/modal/nz-confirm.component.ts
+++ b/src/components/modal/nz-confirm.component.ts
@@ -192,7 +192,9 @@ export class NzConfirmComponent implements OnInit, OnDestroy {
 
   @HostListener('keydown.esc', [ '$event' ])
   onEsc(e): void {
-    this.subject.next('onCancel');
+    if (this._maskClosable) {
+      this.subject.next('onCancel');
+    }
   }
 
   @HostListener('keydown.enter', [ '$event' ])
diff --git a/src/components/modal/nz-modal.component.ts b/src/components/modal/nz-modal.component.ts
index 9cc011627f..bbbd39a62e 100644
--- a/src/components/modal/nz-modal.component.ts
+++ b/src/components/modal/nz-modal.component.ts
@@ -241,7 +241,9 @@ export class NzModalComponent implements OnInit, OnDestroy, AfterViewInit {
 
   @HostListener('keydown.esc', [ '$event' ])
   onEsc(e): void {
-    this.clickCancel(e);
+    if (this._maskClosable) {
+      this.clickCancel(e);
+    }
   }
 
   setStyles(origin?): void {