Based on the data of 5544 valid samples from CGSS in 2011，Analysis of "medical trouble" and "medical expenses expensive" medical services will have a contact effect and its cognitive mechanism.Data analysis found that, Western medicine clinic and Hospitalization have contact effect. Chinese medicine clinic has no contact effect.There is a mediating effect between the medical treatment experience and the medical service satisfaction, and there is a partial mediating effect between the medical experience and the satisfaction of the medical service.Therefore，Increase the frequency of inter-group contact between doctors and patients to improve the satisfaction of medical services; through the change of relatives to improve the patient's willingness to doctors, through the system and other measures to improve the ability and goodwill of medical services trustworthiness.

Medical Service, Contact Effect, Satisfaction, Doctor-Patient Trust