Disclosed herein is an intelligent cannula apparatus for suctioning fat. The intelligent cannula apparatus includes a cannula, a temperature sensor and a handpiece. The cannula has a hollow tubular shape. A plurality of fat suction holes are formed in a front end of the cannula. The cannula generates, from an outer circumferential surface thereof, a high frequency for dissolving fat and facilitating suction of the fat and measures impedance from the high frequency, thus determining a target body part. The temperature sensor is installed in the cannula to measure a temperature of the body part in accordance with the generation of the high frequency. The handpiece is coupled to the cannula.
