Abstract: A golf putter comprising a shaft, a elongate head detachably connected to the shaft and having an impact wing on a longitudinal end thereof and a counterweight adjust means on another longitudinal end thereof, and a connecting structure connecting the shaft and head, in which the head is provided with an impact face on a surface of the impact wing which is positioned in a perpendicular relationship with a lateral axis of the head; and the connecting structure includes a threaded portion formed at a lower end of the shaft and a first thread head formed in the head in a position perparticular to a lateral axis of the head for thread engagement with the threaded portion.