The Manned-Unmanned Teaming technology can fully leverage the low cost and expendable advantages of un-manned platforms to expand the operational space of manned platforms,thereby enhancing their situational awareness,pene-tration capability,and survivability.This paper provides a research overview on the development of MUM-T in the United States,Britain,France,Australia,South Korea,and other countries.It provides several application examples of MUM-T in foreign militaries on marine,land,and air space.It also analyzes some technical challenges and key technologies of MUM-T in wireless communication and networking,remote measurement and control,autonomous decision-making,and human-ma-chine interaction.Finally,the future development trend of MUM-T is prospected,which can serve as a reference for the stud-y of collaborative combat styles and related technological research in future joint operational systems.