Based on the analysis of the construction process of collaborative development capability federation for ordnance equipment, the matching model and process of capability requirement and capability are constructed, and a capability matching algorithm is proposed. The matching algorithm includes three matching stages: the preliminary matching stage that matches the capability category and state; the primary matching stage that matches the basic information and functional information of capability; and the improvement matching stage that matches the capability performance information. Finally, the validity and practicability of the matching method is verified by the left cover of a military vehicle planetary transmission mechanism in the capability-based federal collaborative development platform of ordnance equipment.