模块划分是模块化设计的前提与基础，本文介绍了一种模块划分的新方法。该方法通过计算子功能之间的相关度来进行模块划分，具体包括设计问题的分解、子功能成为独立模块的条件、子功能之间的相关度计算、模块的形成等几个关键步骤。 Module division is the premise and basis of modular design. This paper introduces a new method of module division. The method divides the modules by calculating the correlation between sub-functions, including the design problem decomposition, the sub-functions as the conditions of independent modules, the correlation calculation between sub-functions, the formation of modules, and several other key steps.