The utility model relates to the technical field of robot inspection. More specifically, the present utility model relates to a method for manufacturing, the utility model relates to an inspection robot with a detection device. The mechanical arm comprises a moving carrier and a mechanical arm body arranged on the moving carrier. a camera is arranged at the front end of the mechanical arm; a detection device is arranged in the camera; the detection device comprises an ultrasonic ranging sensor, a displacement sensor, an attitude detector, a pressure sensor and a signal conditioning transmitter. The ultrasonic distance measuring sensor, the displacement sensor and the pressure sensor are electrically connected with the posture detector through the signal conditioning transmitter, a processor is arranged in the posture detector, and the processor is electrically connected with the mechanical arm. And the abrasion of the camera can be effectively reduced.