The invention discloses a nursing machine, which comprises wearable equipment, a suction tube, a motor, a blow-off pipe, a first sensor, a second sensor and a controller, wherein the wearable equipment comprises a suction base; a wearer of the wearable equipment can defecate on a defecation part of the suction base; the wearable equipment is communicated with the blow-off pipe by virtue of the suction tube; and excrement in the wearable equipment can be pumped to the blow-off pipe by virtue of the motor; the first sensor is arranged on the suction base and is used for detecting a first defecation signal on the defecation part of the suction base; the second sensor is arranged in the suction tube and is used for detecting a second defecation signal in the suction tube; the controller is connected to the motor, the first sensor and the second sensor; and the controller is used for controlling the motor in accordance with the first defecation signal and the second defecation signal. By virtue of the nursing machine, working noise of the motor can be reduced. The invention also discloses a motor control method based on the nursing machine.