The invention discloses an interior equipment casing with high environmental adaptability. The casing includes an outer casing edge and an outer casing edge, wherein the outer casing edge forms an inner chamber, the inner chamber is used for accommodating a circuit board or a filler, a casing wall between the inner casing edge and the outer casing edge is internally provided with a gas passage structure, the gas passage structure includes at least a turning point, gas heated and expanded in the inner chamber can be partially exhausted through the gas passage structure, and the water can be further stopped from flowing into the inner chamber. The casing is advantaged in that through setting the gas passage structure, a problem of deformation caused by gas expansion due to heat in the equipment casing in a vehicle can be avoided, and the waterproof function can be further achieved.