To provide a manufacturing method of a drill bit and its structure.

A pedestal main body is forged, and a lever and a cylinder portion are provided on the pedestal main body. On an upper end surface of the cylinder portion, a plurality of fitting portions are formed. A drill tip end is formed by a powder metallurgy method, and the drill tip end is molded in a cylinder shape. The plurality of the fitting members are installed so as to make its lower end correspond to the fitting portions at the cylinder portion upper end of the pedestal main body. By joining the drill tip end and the pedestal main body, the drill bit having wear resistance and being hard to be broken can be formed.