Temperature test box

The invention discloses a temperature test box which comprises at least one standard cavity. The standard cavity is provided with at least two rows of parallel to-be-tested product installation positions, and each installation position is used for installing a to-be-tested product. And an air inlet vertical column is arranged on the side wall of one side of the standard cavity along the inner wall of the to-be-tested product mounting position column. And a return air inlet vertical column is arranged on the opposite side of the side wall provided with the air inlet vertical column. One return air inlet in the return air inlet vertical column corresponds to one mounting position of the to-be-detected product mounting position column, and the horizontal position height of the return air inlet is close to or the same as the horizontal position height of the mounting position. One air inlet in the air inlet vertical column corresponds to one mounting position of the to-be-detected product mounting position column