To remedy the defects of modeling by using of Agent and Petri Net individually, the ways of combining Agent and Petri net nowadays are reviewed, and Agent-oriented Petri Net(AOCPN) is put forward. The running rules and analytic methods of AOCPN are presented. With keeping targets on sea under surveillance and striking them as its tasks, the evaluation model of the space equipment architecture is built and its logical characteristics and operational effectiveness are analyzed. The modeling process and simulation results show that AOCPN can describe the logical and the physical functions of the architecture completely, and be applied to analyze the performance of the architecture and evaluate its influence on combat outcomes comprehensively. The procedure of the architecture carrying out the tasks can be traced effectively.