The management of construction claim terms is an important subsystem of claim system. Due to the requirment of claim decision and the XML technical characteristics, DTD pattern of XML is introduced to manage and integrate claim terms .Based on deeply analyzing the data structure of claim terms, isomorphic switch between claim terms and XML documents; data structure of claim terms objects and DTD,is specificly described;and the DTD model of data pattern of claim terms are given with an applied example.