Objective To explore the application effect of cloud hospital outpatient service model and its informationization practice effectiveness.Methods The main functions of cloud hospital outpatient service include:cloud hospital outpatient doctor reception and follow-up,examination appointment system,cloud hospital outpatient prescription drug prescribing and drug delivery service.The implementation effect of cloud hospital outpatient services was assessed through the application analysis of the functional modules.Results During the last six months from April to September 2023,the cloud hospital outpatient clinic received 175000 visits,of which 53795 were outpatient visits during working hours,104066 were outpatient visits after working hours,12979 were outpatient visits for out-of-hospital care,624 were outpatient visits for network specialists,and 3536 were outpatient visits for convenience service,and the degree of satisfaction of the patients were all above 90%.Conclusion Through its convenience,efficiency and flexibility,the cloud hospital outpatient service provides patients with convenient network outpatient services,which not only broadens the access to outpatient services,but also effectively reduces patients'waiting time and transportation costs,and significantly improves patients'medical satisfaction.