Temperature simulation test box

The invention discloses a temperature simulation test box, and belongs to the technical field of environment test boxes. The temperature simulation test box comprises an outer box body, a test chamber, a plurality of layers of air outlets and a plurality of layers of air return ports, wherein an air conditioning chamber in a notch mouth shape is formed between the outer side wall of the test chamber and the inner side wall of the outer box body; the laboratory comprises an air outlet guide plate and an air return guide plate which are oppositely arranged, through the layout mode, air needs to flow through the right side air conditioning chamber, the upper side air conditioning chamber and the left side air conditioning chamber, the total length of the air conditioning chambers can be prolonged under the condition that an air pipeline does not need to be additionally arranged, flowing air in the air conditioning chambers can be fully mixed, and the air conditioning efficiency is improved. The uniformity of the