The invention discloses a solar heat energy power system based on an eccentric turbine. The solar heat energy power system comprises a heat collection device, a gasifying device, the turbine, a condensation device and a one-way hydraulic pump, all of which are in circular communication sequentially through a circulation pipeline; circular working media are contained in the circulation pipeline, the heat collection device and the gasifying device are mounted in a solar light condensing cover, the condensation device is arranged outside the solar light condensation cover, the eccentric turbine comprises a turbine main case, a rotating turbine structure, an air inlet and an exhaust opening, a rotating shaft of the rotating turbine structure is eccentrically mounted in the turbine main case, and the air inlet and the exhaust opening are distributed in the two radial sides of the turbine main case. The solar heat energy power system based on the eccentric turbine has the beneficial effects of being high in heat energy conversion efficiency, large in turbine torque, adjustable in power and the like.