A novel fluorinated organosilicon compound, exhibiting excellent solvent resistance, chemical resistance and mold release, which is represented by general formula (1): ##STR1## wherein Rf is a divalent group represented by general formula (2): ##STR2## wherein Y is a fluorine atom or CF.sub.3 group; l is an integer of 0-8; k and m are integers of 0-4; j and n are integers of 0 or 1; except when j=k=l=m=n=0.