It is necessary of supply chain quality collaboration to research on the quality improvement strategy for organization legitimacy. From the perspective of organization decoupling, building on the analysis framework between supply chain quality collaboration and organization legitimacy through the quality improvement strategy. Employ AMOS 7.0 and SPSS software on the empirical analysis, analyze the relationship between supply chain quality collaboration and organization legitimacy, finally find that: the behavior of initiative decoupling of enterprises on supply chain has positive influence on quality collaboration indifference, while the passive behavior of organization decoupling has a negative influence; quality collaboration will guide enterprises to carry out rapid quality improvement strategy and slow quality improvement strategy; both of the two quality improving strategies will promote organization legitimacy.