An example anti-corrosion fixing solution belongs to the field of preservative. The fixing solution comprises organic acid, fatty alcohol, amine, sulphone, organic amine salt and water; can be used for preserving human body example, animal example, and plant tissue example, and is free of aldehydes such as formaldehyde and acetaldehyde. The inventive example anti-corrosion fixing solution is characterized in innocuity with rat acute toxicity ig at a dose more than 50000mg/kg which is better than micro toxicity standard (5000mg/kg) of World Health Organization and safety 16.7 times and 1190 times higher than that of common salt and formaldehyde according to safety data reported in international authority literature, Preservation and fixing performance better than formalin. Example treated with the inventive fixing solution can be stored for a long time, and has clear histiocyte structure, high background contrast, and no repair for immunity blocking antigen, thereby simplifying immunity histochemistry experiment.