Aircraft hydraulic pump faults are difficult to accurately predict. A prediction method was thus proposed based on hydraulic pump fault fuzzy comprehensive evaluation and the analytic hierarchy process for aircraft. According to the working mechanism of the hydraulic pump and the formation mechanism, analysis of several common faults of the hydraulic pump in the running process, the common failure modes, and failure factors were obtained. The analytic hierarchy process was used for the access fault prediction of heavy. With the fuzzy comprehensive evaluation method, the hydraulic pump fault was predicted. An aircraft hydraulic pump was used as the research object, and experiments were carried out to verify the proposed method. The results show that the method achieved aircraft hydraulic pump fault prediction performance, which has great application prospects.