Equipment support system breakdown structures are researched, confi guration management requisition is analyzed in the process of building equipment support system breakdown structures. Support system configuration management general tree model is abstracted, and its information model is constructed based on the basis of support system data structure characteristics. Furthermore, procedure model is constructed via to activity diagram belong to United Model Language (UML), with a case for airplane equipment support system configuration management being presented, which can be proved that the model may instruct support system design from top to low. The model may also be used to a multi-series, multi-concept, multiviews support system development procedure.