The present invention provides a putter capable of emitting straight guide lights, a golf putting training apparatus having same, and a golf putting training system using same, the putter comprising: a grip part having a predetermined length; a head part detachably coupled to the lower end of the grip part; a light emitting part provided on the head part and for emitting straight guide lights to positions a predetermined distance away from the front surface section upon receiving an external signal; and a display part disposed on the upper end of the head part and for displaying a pair of light emission positions to which the guide lights are emitted and the center between the pair of light emission positions.
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