In order to solve the generality problems of the measure and control system caused by the diversity of the environment simulation test, this article introduces the concept of data model. Referring to property and content of the environment simulation test, the paper analyses the elements of the measure and control system and builds a conceptual model based on the analysis. Then on this basis, the relational data model is further established. Finally, the designed model is stored as the configuration file of the program in the form of a database, which can make system achieve the different test configurations by changing database, which can enhance the versatility and the later maintenance of the program. This paper takes “the environmental control and twin-engine bleed air dynamic simulation test system” as an example, uses the data model for database creation and invokes the database to display the content of the data model intuitively, which proves that the data model can shorten the time of test preparation and greatly enhance the performance of measurement and control software. At present, the simulation test control system based on this data model has been put into use in several research institutes.