Abstract: A baseball bat swing training apparatus includes a base which sits on the ground with a vertically extending post extending from the base. A baseball bat swing guide is attached to the post which has a pair of parallel swing guide connected at one end and open at the other end. The swing guide arms are positioned at a predetermined slope to the post of between 50 and 80 degrees. Each arm has an approximately 90 degree bend therein to form a bent U-shape. A ball holding cup can be attached to the lower arm while the ball holder can be attached to the upper arm and the vertically extending post is a telescoping post for adjusting the height thereof and may be a dual post. A second embodiment has a pair of posts and a pair of base members for supporting a pair of swing guide arms.