Brake device for vehicle

A brake device for a vehicle, comprising:

• a driving unit positioned in a drum and supplying rotation power;
• a nut screw positioned between first and second brake shoes, and rotated by the rotation power received from the driving unit;
• a first push rod having both sides connected to the first brake shoe and the nut screw, and pressurizing the first brake shoe through the rotation of the nut screw;
• a fixing protrusion fixed to a case surrounding the nut screw, and protruding in the reverse direction to the first push rod;
• a rotation connection part coupled to the fixing protrusion to restrict rotation of the rotation connection part;
• a rotation control part inserted into the rotation connection part so as to be screwed to the rotation connection part, and moved together with the rotation connection part;
• and
• a second push rod having both sides connected to the second brake shoe and the rotation control part, and moved together with the rotation control part in a longitudinal direction so as to pressurize the second brake shoe.