Abstract: Based on the distributed energy and Integrated Solar Combined Cycle power generation（ISCC）technologies,a new ISCC distributed energy system using the solar direct steam system coupled with gas-steam combined cycle is proposed for a certain high-tech industrial park. The composition and working principle of the system are introduced. The matching solar collector area and power generator capacity are calculated. The performance analysis results of the ISCC distributed energy system show that the ISCC distributed energy station can save 2.2% fuel compared with the conventional gas-steam combined cycle power plant. In addition,the multi-energy supply mode can effectively improve the operational stability as well as the efficiency of the system.