Aiming at the problem that the long range rocket artillery strike platform will face the battle test in the multi battlefield environment in the future, an evaluation method using cloud model is proposed. On the basis of building the operational effectiveness evaluation index system of the long-range rocket artillery strike platform, the operational effectiveness of the long-range rocket artillery strike platform in different battlefield environments is evaluated; Experiments show that the complex battlefield environment has an impact on the operational effectiveness of the long-range rocket artillery attack platform. The experimental results show that this method can provide support for finding out the base of the combat capability of the long-range rocket artillery attack platform in different battlefield environments, improving the equipment development of the long-range rocket artillery attack platform and the targeted application practice of the army.