以大平矿选煤厂带式输送机保护系统为背景,介绍了一种基于VB的选煤厂带式输送机保护查询系统的设计,详细介绍了该系统的结构、系统数据库的访问和操作。该系统实现了对带式输送机保护数据的查询、导出和打印等功能,为选煤厂安全生产提供了帮助。-Taking belt conveyor protection system of Daping Coal Preparation Plant as background,the paper introduced design of a query system of belt conveyor protection of coal preparation plant based on VB.It also introduced structure and access and operation of database of the system in details.The system realizes functions of inquiring,exporting and printing data of belt conveyor protection,which is helpful for safety production of coal preparation plant.