With the reform of the electricity market and the development of energy Internet technology, integrated energy system（IES）has been attracted important attention, and has the advantages of cleanness, high efficiency and high utilization rate of energy. Taking IES with multiple energy forms of industrial park as a study object, three alternative operation modes are proposed.Moreover, the influencing factors are analyzed, and the evaluation index system including economic, policy factors of user is proposed. The hierarchical structure model evaluation is established,and the optimal operation mode is selected according to the comprehensive weight through the analysis of the influence factors. Finally, taking the practical project of integrated energy system as an example, the comprehensive evaluation process of the operation mode is analyzed, which provides a reference for the development of IES in the industrial park.