A full HD transmission oral cavity photographic apparatus comprises a photographic portion and a grip portion. The photographic portion includes an image sensor to capture a full HD image and a light source. The grip portion includes a control circuit electrically connected to the image sensor and a transmission interface electrically connected to the control circuit. The transmission interface includes a Wi-Fi Peer-to-Peer transmission module which can transmit the full HD image via Wi-Fi Peer-to-Peer transmission to a display device for displaying.
