Air supply system for refrigerator and refrigerator

The utility model relates to the technical field of refrigeration equipment, and discloses an air supply system for a refrigerator, which comprises a main air duct, a temperature detection air duct and a sensor assembly. The temperature detection air duct is communicated with the main air duct; and the sensor assembly is arranged in the temperature detection air duct so as to detect the temperature of air entering the temperature detection air duct from the main air duct. Therefore, the temperature detected by the sensor can be closer to the actual temperature of the refrigerating chamber, the temperature of the refrigerating chamber or the freezing chamber is prevented from being affected, and the situation that the actual temperature difference of refrigerators of different batches is large at the same gear temperature can be avoided. The utility model further discloses the refrigerator. 本申请涉及制冷设备技术领域，公开一种用于冰箱的送风系统，包括主风道、温度检测风道和传感器组件。温度检测风道，与主风道连通；传感器组件，设置于温度检测风道内，以检测从主风道进入温度检测风道的风的温度。这样，能使传感器所检测的温度更加接近冷藏室实