The nonionic surfactant of nonyl phenol polyoxyethylene ether was synthesized by condensation reaction of nonylphenol and ethylene oxide under the action of catalyst. There are various kinds of hydrophilic equilibrium value (HLB value). This product has a wide application in detergent/printing/dyeing/chemical. This product has good osmotic/emulsifying/dispersing/anti-acid/anti-alkali/resistance to hard water/resistance to reduction/oxidation resistance. This series of nonylphenol polyoxyethylene ether can be widely used as W/O emulsifier or O/W emulsifier, dispersant, is the main raw material of synthetic detergent. It is widely used in industrial cleaning, textile printing and dyeing, paper making, leather chemical industry, chemical fiber oil agent, oil field additives, pesticides, emulsion polymerization and other industrial fields. Tx-10 can be used as a compound monomer of chemical fiber oil, used in the textile printing and dyeing industry as a bleaching, refining, dyeing process of the diffusion agent, leveling agent, oil field wetting agent, foaming agent, mud active treatment agent. Metal processing, machinery, chemical, pesticide, rubber and other industries as emulsifier, cleaning agent