As an important renewable energy technology, concentrating solar power (CSP) plays an important role in the development and utilization of solar resources, supply of energy, energy conservation, and emission reduction. The surface energy flux distribution of the receivers of four CSP systems including parabolic trough system, linear Fresnel reflector system, solar power tower, and solar dish system are analyzed and reviewed. The challenges brought by the non-uniform flux distribution characteristics of the receiver surface and the corresponding solutions are summarized. The non-uniform flux distribution on the surface of the receiver leads to a high local temperature, which has an adverse effect on the safe and efficient operation of the CSP system. Therefore, it is necessary to optimize and improve the concentrating collector system. For the four CSP methods, the main solution is to improve the concentrating performance and heat absorption performance to make the light-collecting match heat absorption.