Intelligent projection device

The utility model discloses an intelligent projection device which comprises a projector and a laser pen. The laser pen comprises a laser device emitting laser spots and buttons controlling sending of execution instructions. A camera, a main control module and a projection module are placed inside the projector. The camera is used for acquiring application icons on the positions of the laser spots. The main control module is connected with the camera, is used for identifying the application icons acquired by the camera, and finding out an application program corresponding to the identified application icons in a preset mapping relation table of the application icons and application programs. The corresponding application program operates after the main control module receives the execution instruction sent by the laser pen. The projection module is connected with the main control module, and is used for projecting an operation interface of the operating application program of the main control module. The intelligent projection device is not limited by the location of a user any more. As long as light beams of the laser pen can be projected on a projection screen, good man-computer interaction can be achieved.