With the increasing importance of equipment support services in the meteorological department, to study the assessment methods of equipment support and to evaluate scientifically the support quality become important. Three independent evaluation systems of the equipment support services are established, and based on the independence of monitoring, maintenance， and repair work, an assessment method of comprehensive performance for equipment support is put forward, in which the weighted average of monitoring rate, failure rate, and repair rate is used to evaluate the comprehensive performance of equipment support, depending on the responsibility of the department. The evaluation indicators and ideas have a certain reference value in establishing an evaluation system for meteorological equipment support services.