a motor retractor , comprising : a winding shaft which winds up a webbing for restraining a vehicle passenger ; a motor which rotates the winding shaft in a webbing winding - up direction ; and a control portion which , after release of the webbing wearing state of the passenger : drives the motor to cause the webbing to be wound up around the winding shaft ; stops the motor when an overload on the motor is detected during the winding - up ; redrives the motor after a predetermined time having elapsed after the motor is stopped due to detection of the overland , and adjusts , at the time of the redriving , a driving state of the motor according to the time of driving the motor that has elapsed before the overload detection , is provided .