High and low temperature environment wave-absorbing darkroom test box

The utility model discloses a high and low temperature environment wave-absorbing darkroom test box which comprises a test box body, a plastic spraying plate shell arranged on the outer side of the test box body, a martensitic stainless steel inner container arranged in the test box body, a pressure relief hole formed in the top of the test box body, and an aluminum honeycomb waveguide window installed in the pressure relief hole. A fan is mounted on one side of the top of the test box body, an electric heating tube is horizontally mounted in one side of the test box body through a first aluminum flange, and an evaporator is horizontally mounted in the test box body below the electric heating tube through a second aluminum flange. The martensitic stainless steel inner container made of the Martensitic stainless steel plates has good magnetic conductivity and electrical conductivity and can effectively shield a magnetic field and high-frequency and low-frequency electromagnetic waves, and the sea surface wave-