The invention discloses a reflector seasonal adjustment type light-gathering and heat-collecting device. The reflector seasonal adjustment type light-gathering and heat-collecting device comprises a main reflector, a rotating rod module, a reflector supporting and adjusting module and a receiver module, wherein the rotating rod module comprises a supporting rod, a positioning cross rod, a rotating shaft, a rotating rod, a receiver fixing frame, a balancing weight and a power device; the reflector supporting and adjusting module comprises a rotating frame, an angle adjusting and fixing device and an adjustable reflector supporting frame; and the upper end of the rotating frame is connected to the positioning cross rod, the rotating frame can rotate around the positioning cross rod, and a greenhouse is arranged outside the main reflector, the rotating rod module, the reflector supporting and adjusting module and the receiver module. The reflector seasonal adjustment type light-gathering and heat-collecting device has the advantages that the number of rotating components is small, the solar energy utilization rate of the unit occupied area is high, the light-gathering effect is excellent, the wind resistance is good, the stability of the device is high, the construction and maintenance cost is low, and the weight is low.