Abstract: Provided is a golf putter having an array of cornual projections formed on a putter face, which structurally suppresses a golf ball on the green during putting from skidding and hopping and from acting/reacting such that movement distance suddenly increases after unintended backspin thereof, and functions to allow, at the same time as putting, forward spin of the golf ball in the proceeding direction and, specifically, to a customized golf putter with an appropriate groove member selected depending on green speed and the gender and physical conditions of a golfer. The golf putter includes: a head having a groove formed on a face, which comes into contact with the golf ball during putting; a shaft connected to the head through a neck; and a grip provided at the end portion of the shaft opposite to the head.