Abstract: When the main control room of the nuclear power plant is digitized, there are some changes in the exchange and cooperation of the work teams, but few studies have been conducted on work teams before, and mainly based on the empirical research instead of experimental research, thus it is difficult to properly quote or modify the Performance Shape Factors (PSFs) in the implementation of Human Reliability Analysis (HRA). In this paper, the behavior analysis software is used to study the behavior of a work team in the training of simulator. The behavioral characteristics and organizational structure of the digitalized main control room are studied for the first time from the perspective of behavioral analysis. Statistics and analysis of communication between teams in an accident training. The research results show that, the operator team in the digital main control room is a clear organizational structure with clear division of labor.