This standard specifies a method for the determination of putrescine, cadaverine, spermidine, spermidine and histamine in water by benzoyl chloride derivatization-high performance liquid chromatograph-ultraviolet detection method, which is suitable for water samples with a detection range of 2.0 mg/L to 40.0 mg/L. The method is quantified by High Performance Liquid Chromatograph after derivatization and extraction of the water sample. The standard details the requirements of relevant reagents and materials, providing technical guidance for the accurate detection of biogenic amines in water quality, suitable for water quality monitoring and environment analysis.