Aiming at the problem that the quality of aluminum alloy surface depainting cannot be quickly detected in the field of automatic laser depainting,an embedded aluminum alloy laser depainting detection system based on machine vision is designed.The embedded system uses an industrial camera to collect working pictures in real time.Based on wireless fidelity (Wi-Fi) wireless module,the real-time transmission of working picture is realized through real-time transport protocol (RTP) and user datagram protocol (UDP),and the reliable transmission of instruction and detection data is realized through transmission control protocol (TCP).The machine vision algorithm is used to detect the unqualified area of paint removal accurately.The actual test shows that the embedded laser paint removal detection system can stably transmit the working picture, instructions and detection data,and can identify the unqualified areas of paint removal quickly and efficiently.The detection accuracy is more than 94%.