The invention relates to a spherical double-layer spiral packing. The spherical double-layer spiral packing comprises a keel frame-shaped packing as an outer layer and a spherical spiral packing as an inner layer, and the spherical spiral packing as an inner layer is a sphere with the surface having spiral grain, and can freely suspend and move in the keel frame-shaped packing as an outer layer. In the working process, the outer layer packing is fixed relative to a tower body, the inner layer packing can suspend and move in the outer layer packing, and the inner layer packing and the outer layer packing respectively have a gas-liquid mass transfer effect, so the specific surface area of the packing is effectively increased, the mass transfer efficiency of a packed tower is improved, and the gas treatment capacity is increased; and the packing is uniformly accumulated, so bridging, cavity and other phenomena of the packing are avoided, thereby the resistance of the tower is reduced, the height of a packing layer is reduced, and the investment and running cost of the packed tower is reduced.