An occupant protection device of the present invention has: a first motor which retracts a webbing of a driver seat; a second motor which retracts a webbing of a front passenger seat or a rear seat; a brake pedal sensor which detects movement of a brake pedal; and a control device which controls the first motor to retract the webbing of the driver seat when a detection value of the brake pedal sensor has exceeded an operation threshold value of the first motor, and controls the second motor to retract the webbing of the front passenger seat or the rear seat when the detection value of the brake pedal sensor has exceeded an operation threshold value of the second motor. Further, in the control device, the operation threshold value of the second motor is set to be lower than the operation threshold value of the first motor. By this device, it is possible to limit a forward shift of an occupant without making the occupant feel uncomfortable even at the time of unexpected braking such as emergency braking.