For the noise control of the ships, due to the rigid limit of the general conditions and the acoustical abnormity, the traditional acoustical design method of the new ships cannot be used directly. For the noise control of the in-service ships, the optimized integrating method of the techniques was proposed. Based on the tactical requirement, the top noise-control targets were designed, and the targets with four criteria were validated. Combining the noise data of the refit test and the existing techniques, the primary composition project of the noise-control techniques was established. With the acoustical evaluation and optimizing, the optimized distributive system of the targets and the final composition project of the noise-control techniques were obtained. The method was validated with a model experiment. The results showed that the method can achieve an optimized composition of the noise-control techniques in the refit of the in-service ships.