For shipboard helicopters, the platforms operational performance is directly affected by operational environment support.To solve current serious problems in operational environment support, this paper introduces the idea of modularization to build the shipboard helicopters operational environment support system covering three levels of plan, function and load.The key technologies such as requirement analysis, plan system generation, coding system, optimal plan configuration and plan decision evaluation are studied.According to different combat missions, the operational environment support plan for shipboard helicopters can be provided precisely and rapidly.