我国拟建的京沪高速铁路运营初期采用高、中速列车混行的运营模式决定了高速铁路列车运行图不能脱离既有路网单独编制。论文从京沪高速铁路列车运行图编制角度 ,提出了两层网络表示法构建基于京沪高速铁路的高速网状线路理论 ,宏观层用来描述网状线路的结构和线路衔接关系 ,计算高、中速列车的运行径路 ;微观层以轨道电路、道岔等单元计算列车的接、发车进路以及平行、敌对进路。仿真结果证明该理论可以应用于京沪高速铁路运输组织相关问题的研究 China’s proposed high-speed Beijing-Shanghai high-speed railway operation early use of high and medium-speed train mixed mode of operation determines the high-speed railway train diagram can not be separated from the existing network alone. This paper presents a high-speed mesh theory based on Beijing-Shanghai high-speed railway based on two-layer network representation from the aspect of compilation of train operation diagram of Beijing-Shanghai high-speed railway. The macroscopic layer is used to describe the structure and connection of mesh, Medium-speed train running path; micro-level track circuit, turnout and other units to calculate the train pick-up and departure routes and parallel, hostile approach. The simulation results show that the theory can be applied to the research on the related issues of Beijing-Shanghai high-speed railway transport organization