Abstract:Based on literature review and theoretical analysis, this paper, focusing on the construction projects, describes organizational integration with organizational relationship, organizational ability, organizational structure, and shared value, and it also builds a project performance measurement framework for process performance, quality performance, innovation and learning performance, and stakeholder performance. A questionnaire survey and structural equation modeling are adopted to analyze the path of organizational integration impacting on project performance. The research findings show that: not all key parts of organizational integration have direct effect on different dimensions of project performance; organizational relationship influences all dimensions of project performance through sharing value; the path is more than one for organizational ability, organizational structure, and shared value impacting on different dimensions of project performance. This study enriches the theory of organizational integration and project performance, and also it provides practical guidance for the managers to improve performance in construction industry.