Abstract: Electrolytic fluorination is one of important production methods of organic fluorides.Based on its technological process and mechanism，it is also an important way to produce some inorganic fluorides.Technological process and reaction mechanism of electrolytic fluorination were introduced.Application methods for electrolytic fluorination in inorganic fluoride production were provided.Finally，a new conception about free radical reaction mechanism of weak electric field was put forward.

Key words: electrolytic fluorination, electrochemical fluorination, inorganic fluoride, reaction mechanism