A putter training device having an outer perimeter wall with two vertical bars within. The two vertical bars bisect each other at their respective centers. Each vertical bar has a centerline transversing it full length. The centerlines form references lines for a golfer when practicing the art of putting. The centerlines may be colored flat line marking with the color being easily seen or the centerlines may be grooves cut into the tops of each vertical bar. Indicia representing the width of a conventional golf ball are on top of the outer perimeter wall at a point where the device is designed to strike the golf ball. The diameter of the outer perimeter is of a width substantially equal to the diameter of a conventional golf hole.