There is a growing trend of industry development toward cluster during recent years in China. Many enterprises have succeeded in being in the global valuation chain based on the industry cluster and got good performance. But there are still some problems should be paid attentions to. The "four district network" that is the core origin of industry group’s competitive advantage and its restructure are tried to explore. The restructure of industry cluster comes from four aspects. Based on "industry chain", the restructure of district industry network aims to optimize and upgrade industry structure. The restructure of district innovation network concentrates on the improvement of some relatively outmoded rules; and new technical innovation mode is benifit to all enterprises in the cluster. The restructure of the district dummy network develops supermarket-on-net and does other electronic usinesses using information technology. The restructure of the district financing network helps medium and small size busintss finance by their cluster advantage.