At present， there are still some problems such as heavy workload and low efficiency in the design process of lever loading system at aircraft structure test in China. Aiming at the actual needs of enterprises， the parameterized and rapid lever loading design system is developed based on the CATIA software platform in this paper. Firstly， the loading points on aircraft shape are calculated based on the distributed digital model of the whole aircraft in general. Secondly， the topological structure diagram of the lever loading system is generated by using the clustering algorithm. Finally， parametric modeling of levers， connectors， etc. is realized and automatic assembly is completed. The example shows that the method proposed in this paper can facilitate the rapid modeling of the lever loading system.