It is of more significance for verifying and determining candidate items of the Proposed Master Minimum Equipment List (PMMEL). This paper advanced a new PMMEL fuzzy comprehensive evaluation method of civil aircraft. First, the factors domain of fuzzy comprehensive evaluation is established by analyzing the purpose of PMMEL. Then, this paper determines the different fuzzy weights by using the analytic hierarchy process and sets up a fuzzy comprehensive evaluation model of PMMEL. The fuzzy comprehensive evaluation results will be obtained. Finally, this paper chose a PMMEL candidate project of the civil aircraft main landing gear downlock spring as an example. This study shows that the new PMMEL evaluation method combined with the expert-based evaluation and essential fuzzy analysis is feasible and accurate which can accurately get the clear result of whether the candidate project is allowed to be included in PMMEL and provides the analysis result verification for the traditional PMMEL method. It has important value and bright prospects for application.