Abstract: The welding telerobotics system,which is used for remote welding in unstructured environment,combines the performance of teleoperation technology and welding technology.Firstly,the overview about the research history and the progress of the state of arts on remote welding based on teleoperation is presented.Furthermore,the main problems in performing remote welding tasks are discussed,in which the telepresense technology and graphics simulation technology used in telerobotis system are emphasized especially for using in remote welding field.The human-machine cooperative control strategies and the system architecture are also focused.At last,some research topics and investigation trends and proposed.