<p>A method for producing lithium hexafluorophosphate, characterized in that the filtration of lithium hexafluorophosphate being present together with a solvent and the drying thereof after the filtration are both carried out in an atmosphere of a gas containing PF5. The method can be employed for producing a product of lithium hexafluorophosphate having a purity higher than that of a conventional product, without carrying out any post-treatment for removing impurities.</p>
