An external ultrasonic apparatus is provided herein. The external ultrasonic apparatus is connected with a mobile electronic device having calculation ability. The external ultrasonic apparatus emits ultrasonic wave to massage the skin of a user and receives reflex ultrasonic wave. A processor of the mobile electronic device is used to calculate physiology data of a location which is massaged. Additionally, a sensing module, which is built in the mobile electronic device, senses the movements of the mobile electronic device to generate location information. Further, the processor of the mobile electronic device links the physiology data and the location information.
