Abstract: The electric thruster is an essential part for the space propulsion, and also among the most promising technologies for future developments of space missions. Various tests are needed to check the validity and the reliability of the electric propulsion, including the thermal environment test. The paper presents a review of studies related to the thermal environment test for electric propulsion systems, including the development of thermal test facilities abroad, and the key techniques of the environmental testing. Some suggestions are made for the development of testing and facilities technical toward the future electric propulsion in China.