The invention discloses a depth detection based body identification control device, which comprises a light source module, a depth image module and a data control module. The light source module emits interrupting pulse light in the same range as the visual range of the depth image module; the depth image module comprises an image sensor and a depth reconstruction unit, and is used for receiving the reflected light irradiated to an object by the light source module and generating a depth image; and the data control module comprises a target identification unit, a target positioning unit, a data conversion unit and a data transmission unit, and is used for identifying and positioning the target body part or the whole body entering the visual range, converting the image into the data capable of being identified and transmitting the data to the corresponding equipment. The depth detection based body identification control device can be applied in the field of multimedia teaching equipment, in particular the field of computer education.