Constant-temperature box with uniformly distributed temperature

The utility model discloses a constant-temperature box with uniformly distributed temperature. The refrigerator comprises a refrigerator body, a cold supply device arranged on the back face of the refrigerator body, a containing plate arranged in the refrigerator body and a cold guide partition plate arranged at the top of the containing plate, four cold air communicating devices communicating with the cold supply device are further arranged on the left side and the right side of the inner wall of the refrigerator body, and the two sides of the containing plate communicate with the two transverse cold air communicating devices correspondingly. When the device is used, the operation is simple; cold air can be uniformly distributed in the cold air groove; the temperature on the plate body isreduced to a required temperature; different types of medicines can be effectively classified by the cold guide partition plate; experimental samples or drugs can be rapidly taken, the disorder situation is avoided, the expe