diff --git a/components/cascader/nz-cascader.component.ts b/components/cascader/nz-cascader.component.ts
index da608957d89..c3c60d3120f 100644
--- a/components/cascader/nz-cascader.component.ts
+++ b/components/cascader/nz-cascader.component.ts
@@ -249,6 +249,8 @@ export class NzCascaderComponent implements NzCascaderComponentAsSource, OnInit,
   }
 
   ngOnDestroy(): void {
+    this.$destroy.next();
+    this.$destroy.complete();
     this.clearDelayMenuTimer();
     this.clearDelaySelectTimer();
   }
diff --git a/components/checkbox/nz-checkbox-group.component.ts b/components/checkbox/nz-checkbox-group.component.ts
index cd1239e8883..e2f96677b3b 100644
--- a/components/checkbox/nz-checkbox-group.component.ts
+++ b/components/checkbox/nz-checkbox-group.component.ts
@@ -13,6 +13,7 @@ import {
   Component,
   ElementRef,
   Input,
+  OnDestroy,
   OnInit,
   Renderer2,
   ViewEncapsulation
@@ -42,7 +43,7 @@ export interface NzCheckBoxOptionInterface {
     }
   ]
 })
-export class NzCheckboxGroupComponent implements ControlValueAccessor, OnInit {
+export class NzCheckboxGroupComponent implements ControlValueAccessor, OnInit, OnDestroy {
   // tslint:disable-next-line:no-any
   onChange: (value: any) => void = () => null;
   // tslint:disable-next-line:no-any
@@ -75,6 +76,10 @@ export class NzCheckboxGroupComponent implements ControlValueAccessor, OnInit {
     });
   }
 
+  ngOnDestroy(): void {
+    this.focusMonitor.stopMonitoring(this.elementRef);
+  }
+
   writeValue(value: NzCheckBoxOptionInterface[]): void {
     this.options = value;
     this.cdr.markForCheck();
diff --git a/components/switch/nz-switch.component.ts b/components/switch/nz-switch.component.ts
index d74da409c95..5d8810727b0 100644
--- a/components/switch/nz-switch.component.ts
+++ b/components/switch/nz-switch.component.ts
@@ -16,6 +16,7 @@ import {
   Component,
   ElementRef,
   Input,
+  OnDestroy,
   TemplateRef,
   ViewChild,
   ViewEncapsulation
@@ -49,7 +50,7 @@ import { InputBoolean, NzSizeDSType } from 'ng-zorro-antd/core';
     `
   ]
 })
-export class NzSwitchComponent implements ControlValueAccessor, AfterViewInit {
+export class NzSwitchComponent implements ControlValueAccessor, AfterViewInit, OnDestroy {
   checked = false;
   onChange: (value: boolean) => void = () => null;
   onTouched: () => void = () => null;
@@ -113,6 +114,10 @@ export class NzSwitchComponent implements ControlValueAccessor, AfterViewInit {
     });
   }
 
+  ngOnDestroy(): void {
+    this.focusMonitor.stopMonitoring(this.switchElement.nativeElement);
+  }
+
   writeValue(value: boolean): void {
     this.checked = value;
     this.cdr.markForCheck();
diff --git a/components/tooltip/nz-tooltip.directive.ts b/components/tooltip/nz-tooltip.directive.ts
index 061db435631..b9b217570a3 100644
--- a/components/tooltip/nz-tooltip.directive.ts
+++ b/components/tooltip/nz-tooltip.directive.ts
@@ -62,6 +62,7 @@ export class NzTooltipDirective implements AfterViewInit, OnChanges, OnInit, OnD
   ];
 
   protected subs_ = new Subscription();
+  protected listeners: Array<() => void> = [];
 
   @Output() readonly nzVisibleChange = new EventEmitter<boolean>();
 
@@ -120,31 +121,48 @@ export class NzTooltipDirective implements AfterViewInit, OnChanges, OnInit, OnD
   ngAfterViewInit(): void {
     if (this.tooltip.nzTrigger === 'hover') {
       let overlayElement: HTMLElement;
-      this.renderer.listen(this.elementRef.nativeElement, 'mouseenter', () =>
+      const listenerMouseEnter = this.renderer.listen(this.elementRef.nativeElement, 'mouseenter', () =>
         this.delayEnterLeave(true, true, this.tooltip.nzMouseEnterDelay)
       );
-      this.renderer.listen(this.elementRef.nativeElement, 'mouseleave', () => {
+      this.listeners.push(listenerMouseEnter);
+
+      const listenerMouseLeave = this.renderer.listen(this.elementRef.nativeElement, 'mouseleave', () => {
         this.delayEnterLeave(true, false, this.tooltip.nzMouseLeaveDelay);
         if (this.tooltip.overlay.overlayRef && !overlayElement) {
           // NOTE: we bind events under "mouseleave" due to the overlayRef is only created after the overlay was completely shown up
           overlayElement = this.tooltip.overlay.overlayRef.overlayElement;
-          this.renderer.listen(overlayElement, 'mouseenter', () => this.delayEnterLeave(false, true));
-          this.renderer.listen(overlayElement, 'mouseleave', () => this.delayEnterLeave(false, false));
+          const listenerOverlayMouseEnter = this.renderer.listen(overlayElement, 'mouseenter', () =>
+            this.delayEnterLeave(false, true)
+          );
+          this.listeners.push(listenerOverlayMouseEnter);
+
+          const listenerOverlayMouseLeave = this.renderer.listen(overlayElement, 'mouseleave', () =>
+            this.delayEnterLeave(false, false)
+          );
+          this.listeners.push(listenerOverlayMouseLeave);
         }
       });
+      this.listeners.push(listenerMouseLeave);
     } else if (this.tooltip.nzTrigger === 'focus') {
-      this.renderer.listen(this.elementRef.nativeElement, 'focus', () => this.show());
-      this.renderer.listen(this.elementRef.nativeElement, 'blur', () => this.hide());
+      const listenerFocus = this.renderer.listen(this.elementRef.nativeElement, 'focus', () => this.show());
+      this.listeners.push(listenerFocus);
+
+      const listenerBlur = this.renderer.listen(this.elementRef.nativeElement, 'blur', () => this.hide());
+      this.listeners.push(listenerBlur);
     } else if (this.tooltip.nzTrigger === 'click') {
-      this.renderer.listen(this.elementRef.nativeElement, 'click', e => {
+      const listenerClick = this.renderer.listen(this.elementRef.nativeElement, 'click', e => {
         e.preventDefault();
         this.show();
       });
+      this.listeners.push(listenerClick);
     }
   }
 
   ngOnDestroy(): void {
     this.subs_.unsubscribe();
+    this.listeners.forEach(listener => {
+      listener();
+    });
   }
 
   // tslint:disable-next-line:no-any