Embodiments of the present application provide a corrosion type discrimination method and apparatus. The method comprises the following steps: obtaining a target material identification correspondingto the target part identification in the target monitoring detection information according to the corresponding relationship between the part identification and the material identification in the equipment information database; obtaining at least one suspected target corrosion type identification corresponding to the target material identification according to the corresponding relationship between the material identification and the corrosion type identification in the material information database; according to the relationship between the corrosion type identification and the occurrence condition in the corrosion type discrimination database, the occurrence condition to be compared with each suspected target corrosion type identification being obtained. According to the target monitoring detection data in the target monitoring detection information and the occurrence condition to be compared, whether the corrosion occurs in the target part and the corrosion type identification is judged, and the judgement result is generated. As such, the corrosion type can be discriminated automatically, online and in real time for a plurality of equipment parts, and the method has the characteristic of high automation degree.