Aiming at deficiencies of existing knowledge resources management systems, we designed a new collaborative knowledge construction system for massive knowledge resources. By collaborative knowledge building in the following three phases: acquisition of knowledge factors, generation of the local extended topic maps and integration of global extended topic map, we realized a conjunction of concept level and knowledge element level in different knowledge granularity, as well as an integration of topic map in distributed nodes. Through those methods we achieved to establish the global extended topic map of a specific domain from knowledge resources.