Taking the outpatient department of International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine as an example, the patients with or without the use of pre-consultation system are selected as the observation group and the control group, and the completion time and corresponding patient satisfaction ratio before and after the use of the system are analyzed in the paper. In the case of using the pre-consultation system, the average time to complete the doctor’s outpatient records is reduced and the patient satisfaction ratio is improved. The research and application of the outpatient consultation system is helpful to improve the outpatient service ability of the hospital.