The present invention relates to an underwater exercise and physical therapy device for joint release and spinal adjustment wherein a tube is worn on a user's upper body and weights are worn on the user's feet in a water tank having a predetermined depth wherein his feet are spaced apart from the bottom surface thereof to carry out underwater exercise and physical therapy by using the buoyant force of the tube and the gravity of the weights, thereby enabling his joints to be released, making his muscles reformed, and further adjusting and preventing his spinal diseases.
