A putting trainer for assisting a golfer perfect his address, the address of the putter, and the putting stroke. The trainer is designed for use on a support surface with a golf ball and a putter. The trainer includes a pair of spaced base members carrying a pair of parallel longitudinally positioned curtains which are arranged perpendicular of a target and in an elevated position which is slightly greater than the height of the ball and the putter blade. The curtains are laterally spaced a distance which is slightly greater than the width of the ball. A guide, which is parallel with the curtains and laterally spaced therefrom a distance equal the distance between the heel and the sweet spot of the putter, is adjustably secured with the base members. In use, with the ball placed between and beneath the curtains with the blade beneath and perpendicular of the curtains, the sweet spot adjacent the ball, and the heel in engagement with said guide. A golfer in proper address will be positioned with his eyes squarely over the ball so that all of the ball between the curtains is seen. A proper stroke will maintain the heel in engagement with the guide and the blade beneath the curtains. An improper address will not position the eyes squarely over the ball which will cause one of the curtains to shield at least a portion of the ball. An improper stroke will move the heel of the putter away from the guide which may cause the putter blade to contact the curtains or to strike the ball at an angle causing it to deviate from the desired line. On a proper stroke the putter blade will strike the ball squarely and cause it to move along the desired line to the target.