Solar thermal power is an important technical means for large-scale application of solar energy. Now it consists of tower, trough and dish systems. Among them, tower system and trough system are more popularly applied on a commercial base. And the trough system is the only one that has grown up to mature technology over 20 years of commercialization, and its cost is much lower than Photovoltaic Power Generation. The energy storage system and combustion system of the trough concentrating thermal power generation system can run for 24 hours, as the scale increases, and the electricity cost is very competitive.