The utility model provides an accelerated corrosion experimental device, which comprises a shell, a heater located inside the shell and a glycerol tank located at the bottom of the shell. The accelerated corrosion experimental device further comprises an atomizing system capable of generating droplets in the shell. The accelerated corrosion experimental device provided by the utility model simulates atmospheric micro-droplets on the surface of a sample through the atomizing system to form a thin liquid film so as to match actual condition better. The result of the corrosion life of an experimental article, estimated by the device under the environment can be more accurate.