In order to stabilize the power fluctuation of the tie line caused by renewable energy system, it usually adopts two kinds of operational modes in the industrial park. One is the integration of all source and load equipment in the park for unified and centralized management, and the other one is the simple interactive operation mode based on electricity demand response. These two operational modes do not tap comprehensively potentials of integrated demand response of multi-energy loads in the park. Based on a detailed analysis of the energy consumption characteristics in the industrial park, this paper proposes a tie-line power control method and establishes a model based on integrated demand response for production tasks, considering energy storage of park, air conditioning load and electric vehicles. The power fluctuation is stabilized by motivating users to respond to load demand, and the method of tie-line power control decreases effectively operating costs and tracking control errors. Taking a battery production industrial park in south China as an example, the results show that the proposed method reduces the economic loss of the park, benefits internal load users and ensures effective tracking of the tie-line power plan.