A light-concentrating, solar system, comprising: a first Fresnel lens (111) provided with at least one tooth face, wherein each tooth face contains at least one Fresnel unit; two reflective faces (112, 113) arranged to enable incident sunlight to converge via the first Fresnel lens (111), and then to irradiate to a first reflective face (112), and at least part of the incident sunlight to be reflected onto a second reflective face (113) by the first reflective face (112); and a photovoltaic panel (114) arranged to enable at least part of the sunlight reflected by the second reflective face (113) to directly irradiate to or be led to irradiate to the photovoltaic panel (114). Since a twice-reflection structure is adopted, on one hand, the system can provide a higher light-concentration ratio; on the other hand, the height of the system can be reduced; and at the same time, a structural design of the system has better flexibility, so that a peripheral design, such as heat dissipation or heat energy utilization, of a photovoltaic panel can be performed more easily.