To stably obtain a fluorine-containing silicone resin useful as a raw material for forming a fluorine-containing coating glass film having a chemically stable structure by condensing a specific fluorosilane derivative.

In this fluorine-containing silicon resin, one silicon atom is bound to each of a part or all of silicon atoms constituting a main chain. The objective resin is obtained by condensing one of fluorosilane derivatives expressed by the formula (R1 to R3 are each an alkyl, an aryl or an acyl) or two or more fluorosilane derivatives expressed by the formula, and preferably containing an acid generating agent such as triphenylsulfonium trifluoromethanesulfonate.