This paper proposes a research hypothesis and theoretical model of the relationship between the indirect use of the system and doctors’ work performance based on social network theory， technology acceptance model and perceived risk theory. We conducted an online questionnaire to doctors in six tertiary public hospitals in Anhui Province through convenient sampling and obtained 506 valid data after collation and analysis. The reliability and validity test and model analysis using SmartPLS 3.0 showed that the incidence of doctors’indirect use of electronic medical record systems was 77.6%. Perceived usefulness positively impacts doctors’indirect system use behavior，while perceived ease of use negatively impacts indirect system use behavior. Perceived risk has no significant impact on indirect system use behavior，while indirect system use behavior positively impacts doctors’task performance and doctor-patient communication quality. The strength of the relationship positively moderates the relationship between the use of indirect systems and the performance of doctors’tasks and doctor - patient communication quality. Above findings suggest that hospital administrators should understand the rationality of doctors’indirect use behavior. The authors recommend establishing an indirect system use system，strengthening the hospital trust culture，standardizing doctors’indirect use behavior，and optimizing electronic medical record system function.