Abstract: It is difficult to model the process of complex multi-agent behaviors coevolution.Aiming at this problem,this paper presents the structure of MAS intelligent control system for behaviors coevolution,and based on Petri net method,the Petri net model for behaviors coevolution process is constructed.The characteristics of the model are analyzed,and the simulation verification was done.This model can adequately describe the flow structure,dynamic behavior rules and agents interaction mechanism of the behaviors coevolution process.