In order to solve the standardization problem of test information existed in integrated support technology, standardized requirements of integrated support technology are analyzed. Based on ATML standard, Using UUT description as an example to explain the standardized modeling and description method of test information, and the XML Schema model is built in hierarchical way. Combining with a certain type of integrated support equipment for concrete description, on the basis of the standardized modeling and description method of test information based on ATML, the standardized model of test information of support equipment UUT is built, and using the diesel generator to illustrate concretely, the standardization modeling and description based on ATML can realize the unity of the format of test information, reduce reliance on special tools or code, reduce testing information parsing and processing difficulty, and effectively solve the standardization problem of test information in the integrated support technology.