As the focus point of military and army for aviation weapons and equipment has gradually shifted from single index verification to comprehensive capability assessment， the ability of trans-field has been paid more attention. With the trans-field requirements as the traction,， the modeling and inter-model interaction research are completed from four dimensions of task input， reliability level， usage and maintenance activities， and support resources. The calculation method for the frequency of usage and maintenance activities is also given to further develope the planning and verification methods of trans-field resources. The model is verified by using flight test data. It provides method support for the troops to carry out trans-field support resources planning， and also lays a technical foundation for the design and implementation of the subsequent support resource simulation system.