Corrosion test condition calculation method and device

The invention provides a calculation method and device for corrosion test conditions. The calculation method comprises the following steps: acquiring a natural environment spectrum of a corresponding target area; the method comprises the following steps: determining a gray correlation degree between a corrosion process aiming at a corrosion test object in a natural environment and a corrosion test aiming at the corrosion test object in a laboratory environment, and determining a target acceleration rate between the corrosion process and the corrosion test according to the gray correlation degree, the target acceleration multiplying power is used for simulating the corrosion process in the actual time length for the corrosion test in the test time length, and the test time length is longer than the actual time length; corrosion test conditions corresponding to the target area and suitable for the corrosion test object are determined according to the natural environment spectrum and the target acceleration mult