Comparing with the 1988’s edition, The New Rainbow Clan pub-lished by FIDIC has many distinction, among which to set up DAB-DisputeAdjudication Board is the most important part. Actually, in The NewRainbow Clan, DAB is not only a board but also a mechanism yet. Nowthe construction market is facing the crisis of cordiality and credit, thereforeto research and establish this mechanism is significant undoubtedly forrebuilding. This article analyses the reasons why the construction markethas lost credit; expounds the necessity of introducing DAB mechanism inChina; and mentions the setting of DAB mechanism and operating mainpoint. Comparing with the 1988’s edition, The New Rainbow Clan pub-lished by FIDIC has many distinction, among which to set up DAB-DisputeAdjudication Board is the most important part. Actually, in The New Rainbow Clan, DAB is not only a board but also a Now the construction market is facing the crisis of cordiality and credit, thereforeto research and establish this mechanism is significant andoublyly forrebuilding. This article analyzes the reasons why the construction markethas lost credit; expounds the necessity of introducing DAB mechanism in China; and mentions the setting of DAB mechanism and operating mainpoint.