Abstract: The traditional production method of antimony trifluoride is using antimony trioxide to react with excessive hydrofluoric acid.This method is difficult to industrialize due to its many defects，such as serious raw material waste，enormous energy consumption，strict demand to equipment material，and corrosive acid mist generation etc..An industrial production method of antimony trifluoride，which used antimony trichloride and anhydrous hydrogen fluoride as raw materials and carbon tetrachloride as solvent，was thoroughly introduced. It included process flow，equipment，and methods of operation and determination of product quality etc..Comparing with traditional methods，the new method was easy to operate，safe，cheap，and no serious pollution，and the obtained antimony trifluoride was a high-purity product.  

Key words: antimony trifluoride, hydrogen fluoride, antimony trichloride, solvent