The effect of the operation of the new rural cooperative medical system depends on the farmers’ objective evaluation of it.In order to insure the sustainable development of the system,great importance must be attached to farmers’ satisfaction survey.Based on statistics from two villages in Hubei Province,this paper attempts to make an empirical analysis of the function of institutional supply theory on farmers’ satisfaction degrees,thus figuring out the current situation of institutional supply and how the institutional supply of the new rural cooperative medical care system functions in farmers’ satisfaction.The result shows that there is a gap between supplies and expectation,and institutional supply means significantly to farmers’ satisfaction. and the financing mechanism supply influences farmers’ satisfaction most,followed by the departmental service supply,the medical service supply and the reimbursement level respectively.Therefore,it concludes that the system designers should improve the level of subsidy and the reimbursement standard,regulate the enforcers’ behaviors and improve the quality of medical institutions’ service to elevate farmers’ satisfaction degrees and ensure the sustainable development of the system.