A comprehensive evaluation index system, which is complete, reasonable and practical, is a necessary theory support for the optimization and benefit guarantee of integrated energy project in industrial park. However, in current energy field, most of present evaluation index systems are limited in comprehensiveness, equilibrium and feasibility. Based on analyzing requirements and conditions of integrated energy projects in industrial parks, the thesis builds a comprehensive evaluation index system with two classthreelayer construction, covering evaluation sectors as technical performance, economic,environmental protection, etc. The comprehensiveness, equilibrium and feasibility of the evaluation index system are verified during case study, proving the index system as satisfactory support for the optimization and future development of integrated energy system in industrial parks.