Corrosion test device and corrosion detection method

The invention discloses a corrosion test device and a corrosion detection method. The corrosion test device is used for detecting the corrosion degree of a water cooling wall of a boiler, the corrosion test device comprises: a base comprising a first end part and a second end part which are oppositely arranged, wherein the first end part can be connected with the water cooling wall, and the second end part is provided with a mounting structure; a test block made of the same material with the water cooling wall, wherein the test block is connected with the base through the mounting structure, the test block comprises a first surface, and the first surface and at least part of the outer surface of the water cooling wall are complementary in shape, so that the test block can be attached to the water cooling wall through the first surface. According to the corrosion test device disclosed by the embodiment of the invention, the corrosion rate of the boiler water-cooled wall in a real service environment can be con