The paper points out the shortcomings of centralized coordination of project construction process and provides another viewpoint: self-organize negotiation coordination. Dividing the construction process coordination into two kinds basing on TCTP: coordination between activities of the same subcontractor, coordination between activities of different subcontractors, considering the self-interesting and independency of subcontractors，the authors introduce the compensation mechanism and give a mathematical model for coordination of project construction process based on cooperative game theory. The Shapley value method is applied to the cooperative benefit sharing among the cooperation subcontractors.