Abstract: Concentrating solar power（CSP） is an emerging renewable generation technology, attracting widespread attention in recent years and is developing rapidly. Compared with wind power and photovoltaic power, CSP is controllable as conventional units and has energy storage ability, making it possible to accommodate renewable energy. It will be a special technology that is able to accommodate high penetration of renewable energy in power system using non-fossil fueled energy. The current situations of the international CSP development were summarized firstly. The state-of-art researches on CSP generation technology were reviewed from the aspect of technical principle, flexible operation, optimal planning and benefit analysis. Then, key scientific issues on CSP operation and planning were pointed out. Finally, the paper prospected the potential research fields of CSP and discusses its future development in China.