A brake force control device for a vehicle comprising: a brake pedal that receives a pedal depression force from a driver at a time of a brake operation; a master cylinder; a pedal stroke detecting means that detects the pedal stroke of the brake pedal; a first brake target value calculating means that calculates a first brake target value; a second brake target value calculating means that calculates a second brake target value based on the pedal stroke; a contribution degree setting means that sets a contribution degree of the first brake target value; and a brake target value calculating means that calculates a first brake target value portion and a second brake target value portion according to the contribution degrees set according to the contribution degree setting means and obtains a final brake target value by adding the first brake target value portion and the second brake target value portion, characterized by a pedal depression force detecting means that detects the pedal depression force applied to the brake pedal; an electric booster that assists the pedal depression force with a pushing force of an electric actuator, wherein first brake target value calculating means calculates the first brake target value based on the pedal depression force, wherein the master cylinder works as follows: the pedal depression force is inputted from an input rod to a master cylinder piston via a spring, an assist pushing force according to the electric booster is added to the pedal depression force, and a master cylinder pressure is generated and applied to wheel cylinders (5FL, 5FR, 5RL, 5RR) on each wheel, and wherein the contribution degree setting means sets the contribution degree of the first brake target value to be greater than a contribution degree of the second brake target value when a brake target value is estimated to be low based on the pedal depression force or the pedal stroke. a brake pedal that receives a pedal depression force from a driver at a time of a brake operation; a master cylinder; a pedal stroke detecting means that detects the pedal stroke of the brake pedal; a first brake target value calculating means that calculates a first brake target value; a second brake target value calculating means that calculates a second brake target value based on the pedal stroke; a contribution degree setting means that sets a contribution degree of the first brake target value; and a brake target value calculating means that calculates a first brake target value portion and a second brake target value portion according to the contribution degrees set according to the contribution degree setting means and obtains a final brake target value by adding the first brake target value portion and the second brake target value portion, characterized by a pedal depression force detecting means that detects the pedal depression force applied to the brake pedal; an electric booster that assists the pedal depression force with a pushing force of an electric actuator, wherein first brake target value calculating means calculates the first brake target value based on the pedal depression force, wherein the master cylinder works as follows: the pedal depression force is inputted from an input rod to a master cylinder piston via a spring, an assist pushing force according to the electric booster is added to the pedal depression force, and a master cylinder pressure is generated and applied to wheel cylinders (5FL, 5FR, 5RL, 5RR) on each wheel, and wherein the contribution degree setting means sets the contribution degree of the first brake target value to be greater than a contribution degree of the second brake target value when a brake target value is estimated to be low based on the pedal depression force or the pedal stroke.