A fluorosilicone rubber composition is provided comprising (A) a first organopolysiloxane having the formula: R.sup.1.sub.aR.sup.2.sub.bR.sup.3.sub.cSiO.sub.(4-a-b-c)/2 wherein R.sup.1 is trifluoropropyl, R.sup.2 is an aliphatic unsaturated hydrocarbon group, R.sup.3 is an aliphatic saturated hydrocarbon or aromatic hydrocarbon group, (B) a silica filler, (C) a second organopolysiloxane having formula (2) wherein R.sup.4 is an aliphatic unsaturated hydrocarbon group or the like, and (D) a cure catalyst. The fluorosilicone rubber composition affords satisfactory adhesion at the interface with dimethylsilicone rubber even when the molding pressure is low. ##STR00001##