The invention discloses a lens with a view distinguishing function. The lens with the view distinguishing function comprises a box; a sliding rail is fixedly connected to the bottom of the inner wallof the box, and sliding blocks are slidably connected to both sides of the top of the sliding rail; the tops of the two sliding blocks are fixedly connected with a moving frame, and the top and bottomof the inner wall of the moving frame are fixedly connected with tooth plates; and a first motor is fixedly connected to the back surface of the inner wall of the box. The invention relates to the technical field of automotive safety. The lens with the view distinguishing function passes through the box through the top of the top box and extends to the top of the box; in the process of using, aslong as someone sits in the cab, a central processor actively controls the monitoring lens to adjust and performs monitoring, therefore, the safety performance is greatly improved; and more intelligent functions are provided through the connection between the output of an infrared inter-shooting sensor and the input end of the central processor and the intelligent monitoring, which can transmit the theft information to the vehicle owner in time, so that the vehicle owner can process the theft.