As the static data table in the information system has a low efficiency in development and cannot be changed according to customized requirements, this study proposes a dynamic query technology based on XML configurations. First of all, digester reads the instantiated configuration information from XML which will be handled by the dynamic query engine. Secondly, the dynamic query engine combined with XML configuration obtains the dataset by SQL, HQL, or interface. Finally, the configuration and dataset are transmitted to clients in the form of JSON and shown by improved dhtmlxGrid. After the above steps, the dynamic data table is formed. The technology is applied to the scientific research management system and human resource information system. The application results prove that this technology significantly improves the development efficiency and meets all kinds of customized requirements such as combination-conditions query customization, data column customization, data column rendering, and data range control.