Vacuum interlayer sound insulation wallboard structure, cabin and aircraft

The invention relates to the technical field of noise reduction, and discloses a vacuum interlayer sound insulation wallboard structure, a cabin and an aircraft. The structure comprises an outer wall sealing layer, a vacuum sound insulation interlayer, a flexible sealing layer, an air sound insulation interlayer, a sound absorption material layer, an inner decoration plate layer, a flexible supporting unit and a frame beam reinforcing unit, and the outer wall sealing layer and the flexible sealing layer are jointly sealed to form a sealed cavity; the flexible supporting unit is arranged in the sealing cavity to support the outer wall sealing layer and the flexible sealing layer, the sealing cavity is vacuumized to form the vacuum sound insulation interlayer, and the air sound insulation interlayer is arranged between the flexible sealing layer and the sound absorption material layer. The flexible sealing layer and the sound absorption material layer are supported through the frame beam reinforcing unit, and t