Because of the lack of equipment maintenance support capability description for the current equipment maintenance support capability evaluation, which is poor standardization for implementing, the article brings the DoDAF technology into the area of the equipment support capabilities evaluation. Based on the indicator system of the equipment maintenance support capability evaluation, it designs the idea of the equipment maintenance support capability evaluation based on DoDAF, standardizes the content of the equipment maintenance support capability description, provides the modeling steps, and validates feasibility by using the example. The results show that it can realize the connection of the evaluation index and the evaluation method effectively, and provide the technology support for the comprehensive description and the objective evaluation of the equipment support capabilities building.