Environmental test box

The utility model relates to an environment test box which comprises a simulation cavity and an atomization cavity. The simulation cavity is arranged above the atomization cavity, the simulation cavity and the atomization cavity are separated through a partition plate, and a plurality of air holes are formed in the partition plate; an atomizing sheet is arranged at the bottom of the atomizing cavity; a water level detector is arranged on the cavity wall of the atomization cavity; a rotating disc is horizontally and rotatably arranged at an opening in the front side of the simulation cavity, and a placing cavity for placing an object to be tested is formed in the rotating disc; and a sealing part matched with the outline of the rotating disc is arranged in the simulation cavity. According to the utility model, the rotating disc arranged on the front side of the simulation cavity can well seal the simulation cavity, especially when an object to be detected is taken and placed, the communication between the exte