Objective:To investigate and analyze outpatient service influence factors of specialist hospital. Methods:Outpatient service influence factors questionnaire was used to investigate 200 outpatients at random. The data was analyzed by RSR method. Results:Two evaluations were “poor” in terms of traffic conditions of coming to our hospital and waiting for the result of examination. Six evaluations were “medium” in terms of waiting for examination,service of registration and charge,service of pharmacy staff,telling of the important items,waiting for paying and appointment of registration. Seven evaluations were “good” in terms of one-stop service of service station,arrangement of outpatient doctor,layout of outpatient,the direction marks, health promotion,waiting for registration and service of outpatient doctor. Waiting for taking medicine,service of outpatient nurse and environment of outpatient are “excellent”. Conclusion:According to cancer patients’ characteristic,these influence factors should be explored in depth to carry better measures to improve service and meet the demand of outpatients’ diagnosis and treatment.