Through analysis for difference of user types,function requirements,and structural composition in tower crane theory examination system,Access 2003 is selected as the rear-end development database,to design the concept structure and logic structure of the database,and build the rear-end database TestDatabase for tower crane theory examina-tion system. In VC++6.0,ADO database access technology is adopted for connection of the database and development software,and data adding,deleting,and search,as well as other operations in the database,hence to guarantee effective management of the database,and build the foundation for development of the application software for tower crane theory ex-amination system.%通过分析塔式起重机理论考试系统中用户类型的不同、功能要求和结构的组成，选用Access 2003作为后端开发数据库，设计了数据库的概念结构和逻辑结构，建立了塔式起重机理论考试系统的后端数据库TestDatabase。在VC＋＋6.0中采用ADO数据库访问技术，实现了数据库与开发软件的连接，以及对数据库中数据的添加、删除和查询等操作，从而保证了数据库的有效管理，为塔式起重机理论考试系统应用软件的开发奠定了基础。
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