Abstract: A practice system for improving the stroke accuracy of a golf putter comprises an alignment mat having an elongated base positionable on a putting surface. Its upper surface has an elongated, straight, visible alignment stripe, an orientation stripe perpendicular to and intersecting the alignment stripe, and a ball hole located at the stripe intersection. An indicator having a base, a rod extending from the base, and an adhesive material mounted in a recess on the base is configured for mounting the indicator on the putter with the indicator rod perpendicular to the putter face. Alignment of the rod with the alignment stripe during a putting stroke indicates a putting stroke colinear with a desired "line". A target comprising a circular disk the size of a golf hole is placed a preselected distance from the alignment mat in alignment with the alignment stripe.