Abstract:Objective：This article analyzes the influence of psychological attribution on the implementation of graded diagnosis and treatment under the mode of medical alliance in order to provide reference for further improvement of the policy of graded diagnosis and treatment in medical alliance. Methods：Two core hospitals and six united hospitals in a city medical union were randomly selected as research places.Through self-designed questionnaire，face-to-face questionnaire survey was carried out on patients from the psychological point view of patients and related interviews were carried out at the same time. Results：59% of the patients did not know the medical union model，36% of the patients said they knew the medical alliance but only 5% knew it very well.The proportion of patients who first choose community health service center or county-level hospital and other grass-roots hospitals was 35%. Conclusion：Patients’ psychology is easily affected by many factors，such as age，education level，medical concept and psychological tolerance.The motivation of medical choice induced by psychological factors deviating from the policy of hierarchical diagnosis and treatment exerted major influence.In-depth publicity and universal education of the concept of medical treatment for the whole people，and correcting the deviation of patients’ psychological attribution are of great significance to the implementation of the medical consortium system.