Aiming at the certain lag and uncertainty of equipment serviceman configuration, put forward an equipment serviceman determine method based on mission requirements. Analyze serviceman configuration in three aspects: the deterministic process of serviceman, maintenance mission requirements analysis, and the determining principle of serviceman. Secondly, on the basis of analysis of the serviceman configuration, respectively proposing the serviceman category determine method and the serviceman number determine model, Using Agent simulation optimization to get the optimal solutions of equipment serviceman configuration. Verify the method by unit application. Finally, the result shows the method is feasibly and rationally. It can give reference for related research.