The invention discloses an inspection robot control system. The inspection robot control system comprises photoelectric sensors and a master controller, wherein the photoelectric sensors are used for detecting the positions of obstacles and arranged on a driving wheel mechanism and a clamping mechanism respectively, the master controller is used for controlling the driving wheel mechanism and a pinch roller mechanism corresponding to the driving wheel mechanism to be opened and disengaged from a line when the photoelectric sensor on the driving wheel mechanism detects the obstacle and controlling the driving wheel mechanism and the pinch roller mechanism corresponding to the driving wheel mechanism to be closed and compress the line when an inspection robot surmounts the obstacle, and the master controller is further used for controlling the clamping mechanism to be opened and disengaged from the line when the photoelectric sensor on the clamping mechanism detects the obstacle and controlling the clamping mechanism to be closed and tightly clamp the line when the inspection robot surmounts the obstacle. According to the inspection robot control system, due to the fact that the photoelectric sensors are adopted to detect the positions of the obstacles, the inspection robot can avoid the obstacles in time, collision between the inspection robot and the obstacles is avoided, and the problem that the inspection robot is damaged or falls from the line is solved.