A maintenance management system for medical equipment is developed based on HIS.The system contains some special functions(including preventive maintenance,automatic job distribution,performance assessment,etc.)which are very useful for confirming the medical equipment in proper conditions and promoting the working efficiency of the staff.The system provides a technical support for the improvement of the maintenance management level.The CS/BS combined mode is adopted so that the maintenance is exempted at the users' end,and the data operation and statistical work become convenient at the engineering department's end.Furthermore,it provides a platform for future hospital information integration.