Cameras are the frontend equipments of the video surveillance system in substation, Their reasonable stationing is important for not only remote surveillance but also safety and reliable operation of the substation. Stationing rule base is based on substation 3D visual scene. Under the base, we can calculate and display the surveillance range of the camera in 3D scene as well as give the numbers and the positions of cameras installed in substation. Thus, cameras installation of the whole substation is automatically built. A intelligent cameras stationing is realized. The test results show that the system has a high application value in eliminating the surveillance hidden danger effectively, improving the remote surveillance system and maintenance technology of substation and raising the efficiency of remote inspection and intelligent linkage.