本文详细介绍如何建立Proteus和PC机串口通信软件之间，进行通信仿真的平台。这个平台由三个部分组成。它们是：Proteus的单片机仿真电路，PC机串口通信软件，连接前两部分的虚拟串口软件。并附录了已经测试通过的ICCAVR C和VB的源码。-This article introduced how to build a Proteus and PC serial communication software, communication simulation platform.The platform consists of three parts.They are: Proteus simulation circuit of single chip microcomputer and PC serial communication software, virtual serial port connection in the first two parts of software.And the appendix has been tested through the ICCAVR C and VB source code.