The utility model discloses a salt spray corrosion testing chamber which comprises a chamber body. The salt spray corrosion testing chamber is characterized in that the chamber body is divided into two layers by a partition plate; a circle of air holes are formed in the edge of the partition plate and used for balancing the humidity and temperature of an upper layer and a lower layer; a salt spray box is arranged on one side of the chamber body; the salt spray box extends into the upper layer and lower layer of the chamber body by virtue of an upper salt spray tube and a lower salt spray tube; nozzles are formed in the tail ends of the salt spray tubes; hooks are arranged at the top of the chamber body and the center of the bottom surface of the partition plate; infrared heating tubes are arranged on two sides of the hooks; sample plates are also suspended on the hooks; insertion holes are formed in the sample plates and used for inserting copper tubes. The salt spray corrosion testing chamber is high in detection efficiency and capable of ensuring the consistency of detection conditions.