The present situation of weapons and equipment System of Systems(SoS) evaluation is analyzed. The requirements of designing weapons and equipment SoS evaluation system are put forward based on the data visualization technology combining with the aim of the troops weapons and equipment SoS construction. Then the advantages and disadvantages of Browser/Server(B/S) mode and Model-View-Controller(MVC) pattern are expounded, and the concepts and features of data visualization technology are introduced. The function modules of weapons and equipment SoS evaluation system are designed, and the specific applications of MVC pattern are given by the combination of B/S mode and MVC pattern architecture. The evaluation system can be applied to the assessment of ability，efficiency and contribution of weapons and equipment SoS.