Abstract：In order to explore the development direction of brachytherapy system and the feasibility of robot-assisted brachytherapy
system, this paper reviews the history of brachytherapy technology, summarizes the development process and applications status of
brachytherapy system, emphatically introduces several kinds of brachytherapy equipment developed at home and abroad in recent
years, as well as the research progress of applicator, radiation source and robot-assisted system. At the end of the paper, the future
development trend of brachytherapy system is prospected, and the development connotation of intelligent mode stage is discussed,
which provides some theoretical basis for the feasibility analysis of robot-assisted brachytherapy system.