Low-sunlight efficient solar heat collection product

The invention discloses a low-sunlight efficient solar heat collection product. The low-sunlight efficient solar heat collection product comprises a heat-insulation water tank, wherein a water tank support and a heat collection pipe support are fixedly arranged at the bottom end of the heat-insulation water tank; a vacuum heat collection pipe is arranged on the heat collection pipe support; the heat-insulation water tank comprises an outer tank body; an inner tank body is arranged in the outer tank body; a space between the inner tank body and the outer tank body is filled with a pressure-foamed heat-insulation layer; a water tank exhaust pipe is fixedly communicated to and arranged at the upper end of the side surface of the inner tank body; the water tank exhaust pipe penetrates through the pressure-foamed heat-insulation layer and the outer tank body; the outer end of the water tank exhaust pipe is located at the outer side of the heat-insulation water tank, and an air blocking pipe is communicated to and