本文主要介绍一种便携收费终端的设计以及实现的关键技术。此终端具有体积小，功耗低，移动灵活，操作简单等特点。主要有身份证识别，pos机刷卡，远程数据库访问，无线网络等功能。文中详细介绍了系统的硬件组成，软件设计，功能模块的具体实现。本文实现的终端主要针对的是校园学生的收费。-This paper describes the design of a portable terminal charges, and key technologies. This terminal has a small size, low power consumption, mobile and flexible, and simple operation. There are card identification, pos credit card machines, remote database access, wireless networking and other functions. Paper details the system' s hardware components, software design, functional module implementation. Aimed to achieve this end is the campus student fees.