RESUMEN
Because of the medical industry valla,the medical market is in a state of oligopoly.Hospitals and patients are in a state of asymmetric information in the medical market,which could lead to moral hazard,adverse selection,and low social and medical efficiency.Based on the gaming model,we analyze the gaming process and equilibrium between hospitals and patients under the circumstances of asymmetric information.The analyzing result suggests that asymmetric information in the medical market is harmful for patient's benefit and the development of medical market as well.Therefore,it's necessary to strengthen the entire social medicare,set up an opening system of medical information and strengthen the national health education so as to relieve the asymmetric information between hospitals and patients,and improve the efficiency of medical market.