Solar thermal power generation is one of the fastest developing and most valuable technologies. Compared to the photovoltaic power generation, solar thermal power generation has its own advantages, such as continuous, stable and adjustable output, and low carbon emissions. As the most important investment part of solar thermal power system, solar collecting field has a significant impact on the performance of solar thermal power generation. The international and domestic development of heat collection technology is described and analyzed. The corresponding improvement suggestion to the existing problem of heat collection technology is proposed. The performance and the development prospect of the improved solar thermal power system are analyzed.