The invention discloses an aluminum foil reel wide in application range. The reel comprises a connecting shaft and two symmetrically-arranged reel bodies. The connecting shaft comprises two shaft sleeves and an adjusting rod. The two ends of the adjusting rod are arranged in the two shaft sleeves in a penetrating manner respectively and in threaded connection with the two shaft sleeves. The other ends of the two shaft sleeves are fixedly connected with the corresponding reel bodies respectively. A plurality of suction cups are arranged on the upper surfaces and the lower surfaces of the two shaft sleeves and are linearly distributed in the axial direction of the shaft sleeves. An expansion ring is arranged on the outer circle face of each reel body. The expansion rings are detachably connected with the reel bodies. Two position limiters are further included. The reel can be suitable for the aluminum foil of different widths and thicknesses, and the application range is widened. The aluminum foil is arranged in the two position limiters in a penetrating manner to limit the left and right positions in the limiting process, the two sides of the aluminum foil and the reel bodies are prevented from being scratched, and product quality is improved.