The invention discloses an automatic inspection device for a power device. The automatic inspection device comprises an engine body and a remote monitoring device, wherein the engine body is driven by a driving device, power is supplied to the engine body by a power supply system arranged inside the engine body, the engine body is used for inspection through a detection system arranged outside the engine body, a signal obtained through inspection is transmitted to the remote monitoring device by a data transmission system, and the remote monitoring device is in signal connection with the detection system. The automatic inspection device for the power device can be driven by two modes such as a belt or a propeller, so that inspection device can be applicable for different detection environments, the inspection range and place are expanded, the detection signal can be remotely sent to the remote monitoring device, a worker is convenient to know an inspection condition, the automatic inspection device is very convenient and has the advantages of versatile functions and high adaptability, the trouble of manual inspection is omitted, the working efficiency is improved, and the safety of a power worker is guaranteed.