Abstract: An microsoft foundation class(MFC) based simulation system of operational capability for acoustic homing torpedo is designed and implemented.According to the design specification of a general software, the whole design is completed,including system requirements analysis,project design,detail design and system tests.The simulation system can take torpedo hit probability as assessment index to investigate the optimization and integration of homing searching strategy and trajectory in torpedo design,and to resolve relative issues in torpedo operational application for enhancing torpedo operational capability.In addition,the visual interface of the system make data input convenient,and the output can be displayed in the forms of datasheet and graph,which exhibit convenience and higher efficiency in application.