In order to quantificational research in the process of armored vehicle closed loop road driving training, based on analysis of armored vehicle closed loop road driving training process logic and scheduling relation, the IDEF3 process modeling method is applied in constructing the model of armored vehicle closed loop road driving training process flow network and the OSTN model. By application of the models, the calculation expressions of armored vehicle closed loop road driving training total time and the calculative method of starting off interval, which is the key influence factor of the training total time, are given. Through the test, the efficient data conclusion is gained, which validates the practicability of the model and supplies the model method and data sustentation for improving training efficiency and the scientific level of training organization.