Abstract: <SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">As an electrolyte with the optimal comprehensive performance of lithium ion battery,lithium hexafluorophosphate was taken into account by many research institutions at home and abroad in recent years.Various lithium hexafluorophosphate preparation methods,especially their recent progress were reviewed.According to the requirement of energy saving and emission reduction,the advantages and disadvantages of these methods were discussed in detail.In addition,improving and innovation of the prepapration technology of lithium hexafluorophosphate in future were prospected.At last,some green environmental-friendly preparation methods which can possibly be industrialized were also put forward. </SPAN>