The invention discloses a development method of an optimizer plugin of multidisciplinary optimization simulation software. In the method, the optimizer plugin comprises a plugin port module, an API interface module, an algorithm program module and a plugin interface module, wherein the plugin port module is used for realizing the function calling carried out on the optimizer plugin by the simulation software; the API interface module is used for realizing calling carried out on an analysis module in the software by the optimizer plugin; the algorithm program module is used for realizing functions of calling an algorithm program and executing an optimization strategy; and the plugin interface module is used for realizing graphical configuration of parameters of the algorithm program. According to the method disclosed by the invention, interfaces are simple and easy to learn, so that the online debugging of the program of the optimizer plugin can be realized, and the development period of the optimizer plugin can be shortened; and meanwhile, the calling and data transmission between the optimizer plugin and the simulation software are carried out by adoption of a memory interaction manner, so that the running efficiency of the optimizer plugin is improved.