Abstract:Based on the characteristics of construction stage of subway project on limited construction site, high construction technology and high risk of construction, this thesis explored characteristics of the composition of the object from two aspects of project environment and the construction technology, and construct the complexity model of the project by dividing the project complexity. Based on the requirement of project environment of different complex levels and construction technology on construction enterprises and personal ability respectively, and then analyzed the composition of the subject ability, then, constructed the model of the subject capacity, based on the membership grade to evaluate the level of individual ability, and determined the evaluation criterion of the subject and object matching. Next, applied the criterion to the case and evaluated the matching of subject and object, therefore, put forward some corresponding measures, which will provide a reference for the improvement of enterprise management level.