Abstract： Combined with the characteristics of trailing suction hopper dredger (TSHD), the advanced grade evaluation method for TSHD which has been delivered is proposed on the basis of the national standard. The evaluation criteria system and calculation method are put forward to assess the capability of TSHD. Results of analysis and calculation examples prove the availability of evaluation criteria system and calculation method for TSHD. The advanced level of TSHD in the same type ship can be graded according to the obtained evaluation results to appraise whether the TSHD achieves the desired results, find out the existing problems, and summarize the experience to guide the future work. At the same time, the evaluation criteria system and calculation method will be a beneficial complement to function grade valuation system of ships and ocean structures in the national standard.