A new way to generate bottle beam by using annular beam is presented. When annular beam illuminates perpendicularly bottom surface of axicon, bottle beam is generated along the optical axis behind the axicon. Process of generating bottle beam and transverse intensity distribution at different location on optical axis are analyzed by using geometrical optics. Formulas for calculate bottle beam sizes are deduced and the factors affecting bottle beam sizes are discussed. The results of contrast experiment agree approximately with theoretical analysis. Compared with doubleaxicon and axiconlens, this method for generating bottle beam is simple in operation and the optical elements processing is easy, so it is important in applications.