Climate cabin structure of extreme climate environment simulation device

The utility model relates to a climate chamber structure of an extreme climate environment simulation device, which comprises a climate chamber body and an air feeder connected with the climate chamber body, the climate chamber body comprises a chamber inner chamber, a suspended ceiling layer located above the chamber inner chamber and an air feeding plate located between the chamber inner chamber and the suspended ceiling layer, the air feeder is located above the suspended ceiling layer, and the air feeding plate is connected with the air feeder. The climate cabin body further comprises an air return cavity and an air return channel which are located on one side of the cabin inner chamber and communicated with the cabin inner chamber, air flow enters the cabin inner chamber from top to bottom through the air supply plate, the air flow in the cabin inner chamber flows from top to bottom, then enters the air return cavity on one side of the cabin inner chamber, sequentially passes through the air return chann