In the past, outdoor PV panel assembly required a combination of several people to perform a series of operations such as handling, mounting, locking, etc. The working environment was characterised by strong light, high altitude and very strenuous work. In the full outdoor environment without any shade, the customer adopts the customised PV panel assembly robot to replace the handling and installation link, which speeds up the whole assembly process. The outdoor 3D vision system overcomes the effects of harsh environment such as light intensity, temperature and humidity changes, and guides the robot to complete the installation operation smoothly, improving the efficiency of PV site deployment.