Abstract:in view of the equipment reliability, maintainability, supportability, and testability (RMST) problems existing in design, focus on the characteristics of smoke vehicle tasks and use of security requirements, a task rate index is introduced into the new type smoke vehicle RMST design, creating suitable RMST design process, integrated design quantitative index system and level parameter mathematical model, and analyzing the involved systems engineering design, comprehensive balance optimization, the index key technology such as adjust the allocation. This topic can provide a certain research foundation for improving RMST design level of new type smoke vehicle.