diff --git a/src/lib/menu/menu-trigger.ts b/src/lib/menu/menu-trigger.ts
index 0276fbc13ff4..928c48adbfed 100644
--- a/src/lib/menu/menu-trigger.ts
+++ b/src/lib/menu/menu-trigger.ts
@@ -39,7 +39,7 @@ import {MenuPositionX, MenuPositionY} from './menu-positions';
   host: {
     'aria-haspopup': 'true',
     '(mousedown)': '_handleMousedown($event)',
-    '(click)': 'toggleMenu()',
+    '(click)': 'toggleMenu($event)',
   },
   exportAs: 'mdMenuTrigger'
 })
@@ -54,6 +54,9 @@ export class MdMenuTrigger implements AfterViewInit, OnDestroy {
   // the first item of the list when the menu is opened via the keyboard
   private _openedByMouse: boolean = false;
 
+  /** Wether the preventClose for menu instance is asked or not.*/
+  @Input() preventClose: boolean = false;
+
   /** @deprecated */
   @Input('md-menu-trigger-for')
   get _deprecatedMdMenuTriggerFor(): MdMenuPanel { return this.menu; }
@@ -93,8 +96,25 @@ export class MdMenuTrigger implements AfterViewInit, OnDestroy {
   get menuOpen(): boolean { return this._menuOpen; }
 
   /** Toggles the menu between the open and closed states. */
-  toggleMenu(): void {
-    return this._menuOpen ? this.closeMenu() : this.openMenu();
+  toggleMenu(event): void {
+      /** whent it's a void function why there is a return statement? */
+      /** Removed `return` */
+
+      /** Checks if preventClose is defined and has true value or not. */
+      if (this.preventClose) {
+          /**
+          *    `this._element.nativeElement.contains(event.target)`.
+          *    Checks if the target, where click was fired, falls inside menu panel or not.
+          */
+          if (this._menuOpen && !this._element.nativeElement.contains(event.target)) {
+              this.closeMenu();
+          } else {
+              this.openMenu();
+          }
+      } else {
+          /** If no `preventClose` is defined, it will go same old way. */
+          this._menuOpen ? this.closeMenu() : this.openMenu();
+      }
   }
 
   /** Opens the menu. */