In order to solve the assembly problem caused by the position and pose deviation of complex parts in the automated assembly process,and realize the scanning control of the robotic arm with feedback adjustment capability,a real time detection system based on laser three dimensional scanning is designed.The three dimensional surface shape data is obtained by raster scanning.Part matching is done through edge feature recognition.Finally,the goal of automatically adjusting the position and posture in the tooling environment is achieved.The experiment controls the SP165 manipulator,and takes the 6 degree of freedom parameter as the evaluation index of detection accuracy.Compare and analyze the simulation data based on the digital model of the part,the test data of the fixed scan path and the test data of the automatic adjustment scan path respectively.The results show that the maximum position deviation and maximum pose angle of automatic path adjustment using this system are 0.028mm and 0.026°,respectively.And it is significantly better than the 0.084mm and 0.095° obtained by the fixed path test.The standard deviation of the position deviation and the standard deviation of the pose angle of the system are increased by 4 times and 3 times respectively.In short,it has certain application value in the field of automatic detection and control.