Coal suppliers are the sources of coal transaction, and the port enterprises’ scientific evaluation of the large number of upstream coal suppliers is the essential foundation for their own development and the stability of coal transaction. The aim of this paper is to evaluate and classify the coal suppliers from the perspective of sea port enterprises. The evaluation criteria are proposed by factor analysis. An integrated fuzzy analytic network process (FANP) and fuzzy comprehensive evaluation (FCE) method is developed and used to evaluate and classify the six coal suppliers of Jin-Ji ports group. Herein, FANP is employed to determine the weight of criteria proposed by factor analysis and the coal suppliers are evaluated and classified by FCE. Finally, a sensitivity analysis is carried out to to testify the stability and robustness of the method. The research results demonstrates that "basic capability" and "development potential" are relatively important when evaluating coal suppliers and based on these two factors, the suppliers are categorized into four classes: collaborative, cooperative, enhanced and available. Moreover, the method is able to evaluate coal suppliers with high evaluation robustness, which therefor may serve as a reference for other industries in real world decision.