The invention relates to a multi-functional microwave oven. The multi-functional microwave oven comprises a shell (1), wherein an accommodating cavity (11) is arranged inside the shell (1); the accommodating cavity has an opening (12); and a fresh keeping film cutting device (3) is arranged inside the accommodating cavity (11). The multi-functional microwave oven is characterized in that a rotary disc (4) and a motor (6) which can drive the rotary disc to rotate are arranged inside the accommodating cavity; the fresh keeping film cutting device (3) is arranged on one side of the rotary disc (4); a vacuum packaging machine (5) is arranged on the other side of the rotary disc (4); and the fresh keeping film cutting device (3) and the vacuum packaging machine (5) can be exposed to the opening (12) of the accommodating cavity (11) under the rotation of the rotary disc (4). Compared with the prior art, the multi-functional microwave oven has the advantage that a user can conveniently package the food heated by the microwave oven, cut a fresh keeping film, and perform vacuum packaging on the food as well.