Abstract: This paper presents a new climbing robot system for anti-terrorism reconnaissance.The system consists of a biped climbing robot using vacuum suckers to produce the adhesive force,a portable remote controller and a wireless video module.The control system based on DSP technology can make the robot move flexibly on a smooth surface.An algorithm to control the robot to transit between differently inclined surfaces is proposed.Experiments show that the robot is small in size,low in noise and easy to conceal,the video is clear and reliable,and the whole system can satisfy the basic requirements of anti-terrorist reconnaissance missions.