A method of virtual user interface interaction based on gesture recognition comprises detecting two hands in a plurality of images, recognizing each hand's gesture, projecting a virtual user interface on an open gesture hand when one hand is recognized with a point gesture and the other hand is recognized with an open gesture, tracking an index fingertip of the point gesture hand, determining whether the index fingertip of the point gesture hand is close to the open gesture hand within a predefined rule, interpreting a movement of the index fingertip of the point gesture hand as a click command when the index fingertip of the point gesture hand is close to the open gesture hand within the predefined rule, and in response to the click command, generating image data with a character object of the virtual user interface object.