Mobilization production is an effective model to respond to emergency situation, which can organize all kinds of production resources and enlarge production capacity in short time. The design of mobilization production plan needs numerous data and to be revised repeatedly. Therefore, it is very difficult for the traditional design approach to work out right results and forecast the performance of mobilization production plan. A parametric simulation modeling approach is presented in this paper to solve those problems. The approach separates the control logic from modeling elements through creating simulation database, typical model base and control logic base. A model generator is built to automatically create the finial simulation model based on those kinds of bases. The simulation software of AutoMod is applied to realize the modeling process above. Finally, a case study is presented to illustrate the application of the proposed approach.