The invention relates to a stretching and rotary cutting compound die for a thin-material end cone. The stretching and rotary cutting compound die for the thin-material end cone comprises an upper die frame and a lower die frame. An upper fixed plate is arranged on the lower side of the upper die frame. A through work cavity is formed in the middle of the upper die frame. A guide groove is formed in the middle of the upper fixed plate. A guide block is arranged in the guide groove. The guide block is connected with a floating male die through a connecting bolt. The floating male die is arranged below the upper fixed plate. A lower cushion plate is arranged on the upper side of the lower die frame. A female die is arranged on the lower cushion plate. The female die is connected with the floating male die in a matched manner. The portion, connected with the floating male die, of the female die is provided with N rotary cutters, wherein N is larger than or equal to 2. A stretching height is set between the upper portion of the floating male die and the lower portion of the upper fixed plate. According to the stretching and rotary cutting compound die of the thin-material end cone, single-working-procedure production is adopted, errors caused by repeated locating are eliminated, and the production efficiency is improved.