Integrated energy park is the basic unit of new electric power system dominated by renewable energy. Depending on distributed generators, the energy production and consumption nearby and self-balance of park are achieved. The contradiction of seasonal load mismatch between distributed generators and users can be released by tapping demand response potential and stipulating different season of use (SOU) price. A pricing method for SOU price in integrated energy park was put forward accordingly. First of all, considering characteristics of load and demand response, users were classified by k-means clustering algorithm. Then, according to unbalance load of park, SOU periods were determined by k-means clustering algorithm. At last, the optimization model was established to stipulate SOU price of different types of users. As the case shown, based on this method, SOU price can promote local consumption of distributed generators efficiently and raise the utilization ratio of clean energy and overall economic benefit of park.