A fluorine-containing polyfunctional silicon compound represented by the following general formula (I), which is useful as a raw material for materials having high water repellency and excellent scratch resistance and water droplet sliding properties and which can be produced by a production method which is simple and easy and environmentally friendly, is provided. In the formula, Q represents an (n+m)-valent organic group having at least one fluorine atom; each of Rf1 and Rf2 independently represents a fluorine atom, a hydrogen atom or an alkyl group having at least one fluorine atom; R1 represents a hydroxyl group, an isocyanate group or a hydrolyzable group; R2 represents a hydrogen atom or a hydrocarbon group; k represents 0 or 1; n represents an integer of 2 or more; m represents an integer of 0 or more; a represents an integer of from 1 to 6; and b represents an integer of from 1 to 3.