Brake pedal movement device

A brake pedal moving device includes a pedal simulator connected to a brake pedal and configured to provide a reaction force, a motor configured to provide the power, a power conversion portion configured to convert a rotational force of the motor into translational movement to move the brake pedal and the pedal simulator forward and backward, and a housing in which at least a portion of the pedal simulator and the power conversion portion are accommodated and in which the motor is installed, wherein the housing includes a main body including an installation space in which the at least a portion of the pedal simulator and the power conversion portion are accommodated, and a sub body in which the motor and a connector electrically connecting the motor to the power supply or an electronic control unit are installed to be spaced from each other.