The invention discloses an unpacking device suitable for a multi-purpose bottle package. The unpacking device comprises a film cutting platform, a conveying platform, a film clamping platform, a plastic and film separating mechanism, a bottle conveying track, and a tray taking mechanism, wherein a first vacuum suction cup is arranged on the film cutting platform, and a film cutting manipulator isarranged at one side of the film cutting platform; the film cutting manipulator is provided with a film cutting cutter, and is used for performing annular four-sided cutting or three-sided cutting ofa packaging film on a bottle packaging material, and the starting end of the conveying platform butts up to the film cutting platform; the film clamping mechanism is arranged at one side, away from the film cutting manipulator, of the conveying platform, and is used for clamping a top film of the bottle packaging material of which the three sides are cut, and the input end of the plastic and filmseparating mechanism is in butt joint with the tail end of the conveying platform, and is used for separating a bottom film of the bottle packaging material of which the four sides are annularly cut and the three sides are cut from the bottom of a container bottle; the bottle conveying track is in butt joint with the output end of the plastic and film separating mechanism, and the tray taking mechanism is arranged above the bottle conveying track, and is used for taking a paper tray and the top film at the top of the bottle packaging material of which the four sides are annularly cut. The unpacking device can be used for unpacking the packaging film of the whole plastic film bottle packaging material, and can also be used for unpacking the packaging film and the paper tray of the paper tray plastic film bottle packaging material.