The invention discloses an ARM-based detection robot, which includes a crawler walking mechanism, an ARM processor, a body, auxiliary walking wheels, auxiliary walking poles, a gas collection device, a connecting pipe, a gas analysis device, a temperature sensor, a rotating shaft, and a lifting rod And the observation camera, the upper end of the crawler walking mechanism is equipped with a body, and the middle of the body is equipped with an ARM processor. , the body is equipped with a gas analysis device, the gas collection device and the gas analysis device are connected through a connecting pipe, the two ends of the top of the body are equipped with auxiliary walking poles, the top of the auxiliary walking pole is equipped with auxiliary walking wheels, and the side of the body is connected by a rotating shaft. There is an observation camera at the end of the lifting rod. The invention has the advantages of simple structure, convenient use and various functions, can realize front and back walking, quick response and good photographing effect.