Unmanned surface vessel (USV) which is an unmanned and intelligent platform which relied on remote control or autonomous navigation. Compared with conventional surface vessels, USV has many merits such as variegated function, flexibility of operations, zero injury and network information center. Trimaran is a kind of high-speed-crafts, and has broad application for military and civilian market. Here, we develop and design a modular platform of Trimaran unmanned vessels, an unmanned vessels model data acquisition and analysis system. Through the model test of maneuverability and rolling, we validated the feasibility that Trimaran unmanned vessel model test data apply to identify ship rolling motion and maneuverability motion.