提出了铁路大站及区间信号自动控制系统计算机模拟模型结构，在此基础上建立起车站联锁子模型和双线区间自动闭塞子模型。能满足利用计算机模拟手段进行实验教学和人员培训的需要，并为铁路运输科研课题进行列车运行的精确模拟提供支持。 The structure of computer simulation model of railway station and automatic signal control system is put forward. Based on this, a station interlocking sub-model and a double-line automatic block sub-model are established. It can meet the need of experiment teaching and personnel training by means of computer simulation and provide support for precise simulation of train operation in railway transportation research project.