The invention relates to a full-automatic rotating disc bag feeding type vacuum packaging machine. According to the technical scheme, the full-automatic rotating disc bag feeding type vacuum packaging machine comprises a packaging rotating disc capable of rotating. A plurality of clamping claws connected with the packaging rotating disc are uniformly distributed on the edge of the packaging rotating disc. A bag conveying mechanism, a bag opening mechanism and a filling mechanism which can be matched with the clamping claws on the edge are arranged on the edge of the packaging rotating disc. A vacuumizing rotating disc capable of rotating is arranged on one side of the packaging rotating disc. A plurality of vacuumizing mechanisms rotating along with the vacuumizing rotating disc are fixedly arranged on the edge of the vacuumizing rotating disc. A transfer station is arranged between the packaging rotating disc and the vacuumizing rotating disc and provided with a transfer mechanism for transferring packaging bags, filled with food, on the packaging rotating disc into the vacuumizing mechanisms. The vacuumizing rotating disc is provided with a vacuum pump connected with all the vacuumizing mechanisms. By the adoption of the technical scheme, the full-automatic rotating disc bag feeding type vacuum packaging machine improves the packaging efficiency and is simple in structure and high in synchronization degree.