Objective To explore the useful experience and shortcoming of the appointment system through the data analysis of HIS outpatient appointment registration,in order to improve the outpatient registration appointment face and reduce the rate of non-attendance,further to optimize the management and resource of outpatient service.Methods The appointment registration was classified and transversely compared to find out the effectiveness and shortcomings of existing system according to whether or not make an appointment from experts,whether or not pay the money for appointment immediately,the specific way of appointment.Results With the advancement of appointment registration system,the proportion of the type of appointment registration was dynamic changes.In Ningbo Kangning hospital,a the number of people made telephone appointment was3 188 (58.31％),and was the highest proportion of the number of reservation; the number of people made network appointment was 1 752 (32.05％) ; the number of people made the appointment at clinical intervals was 527 (9.64％).The awareness rate of appointment registration was increased accompany with the promotion of online registration system in the city health network.The main problems were the low rate of appointment (4.31％ in 2011,10.14％ in 2012) and the high rate of non-attendance (35.50％ in 2011,26.37％ in 2012).The appointment registration system in our hospital was launched in 2011,and the number of people made the appointment was 5 467 (5467/126 755,4.31％),and the patients were more accustomed to the traditional medical mode.The number of people made the appointment and the total number of people made the registration were increased in 2012,and the number of people made the appointment was 14 097 (14 097/138 958,10.14％).No differences was found in the arrival rate of appointment registration in the patients with difference title (P ＞ 0.05).The rate of non-attendance in the department of psychological consultation was significantly lower than that in the department of psychiatric,and the difference was statistically significant (P ＜0.01).Conclusions The improvements are carried out through strengthening the outpatient service management and propaganda,improving information platform,paying the money for appointment at once and optimizing the appointment at clinical intervals.