Objective To establish the evaluation system of key material suppliers in blood station to standardize the behavior of suppliers and ensure blood quality and safety.Methods A key material supplier evaluation index sys-tem with 4 criterion level indexes and 12 sub-criterion level indexes was established by analytic hierarchy process.The weight of each index was determined by the judgment matrix,and the consistency test was carried out.Results The key material supplier evaluation system was used to evaluate the annual performance ability of existing suppliers,and the rolling deduction method,guiding bonus method,early warning mechanism and incentive mechanism were introduced in-to the supplier evaluation process,and the supplier grades were divided into four levels:excellent,good,qualified and control.Conclusion The evaluation system of key material suppliers in blood station based on analytic hierarchy process can confirm the reliability and value of evaluation data,embody the role of supplier evaluation in quality manage-ment system,and provide a reference for key material supplier evaluation in blood collection and supply institutions.