Tetrahydroxymethyl phosphorus sulfate (THPS) is mainly used as a bactericidal and algicide in water treatment, oil field pipelines, fish farming, etc. It can be quickly degraded into completely harmless substances after use, and is also commonly used in fabric flame retardant treatment, leather softening and Paper and other industries. Tetrahydroxymethyl phosphorus sulfate is a kind of green and environmentally friendly Chemicalbook quaternary phosphate fungicide. The product has good water solubility, low freezing point, stable chemical properties, and long-term storage does not affect its quality. It is a new, excellent, efficient, broad-spectrum, low-toxicity, low-dose, low-foaming, and environment-friendly fungicide, which has strong killing performance against bacteria and algae.