A golf putter training device is described. The training device includes a bracket having a first end configured to be attached to the putter shaft and a second end connected to a support shaft, a first visual guide connected to the support shaft and extending in a direction away from the bracket first end and at an angle to the plane formed by the putter shaft and the putter head and on a first side of the plane, and a second visual guide connected to the support shaft and extending in a direction away from the bracket first end and at an angle to the plane formed by the putter shaft and the putter head and on the second side of the plane. In another embodiment, the training device includes a third and fourth visual guide. In yet another embodiment, the training device includes visual indicators.