The invention provides a solar heating device which comprises a triangular support and a supporting rod fixedly mounted at the top end of the triangular support. The solar heating device is characterized in that the triangular support comprises three supporting legs made of stainless steel pipes, the top ends of the supporting legs are connected in a welded manner, and the bottom ends of the three supporting legs are connected through reinforcing ribs; the top end of the supporting rod is sleeved with a sleeve with a closed top end, and a heater mounting frame is rotationally mounted at the top of the sleeve through a rotary shaft; and a solar heater is mounted in the heater mounting frame, and comprises a heating water pipe fixedly mounted on the heater mounting frame, a water inlet and a water outlet are formed in the edge of the heater mounting frame, a lens mounting groove is fixedly formed in the heater mounting frame, and a condensing lens is fixedly mounted in the lens mounting groove through glass fixing cement. The solar heating device is simple and practical in structure and convenient to use and maintain, and solar energy can be converted into electric energy; and the use effect is good, cost is low, and application and popularization can be achieved.