A cardiology rehabilitation training device and operation method, including a support rod, a lower fixing cylinder, an upper fixing cylinder, a limit sleeve, an adjustment sleeve, a limit rod, a reinforcement sleeve, an adjustment disc, a handle, and a reset sleeve. The lower part of the support rod It has a fixed sleeve, the inner side of the fixed sleeve is adapted to the fixed rod, the fixed rod is connected to the fixed sleeve, the fixed sleeve is stuck on the fixed rod, and the lower part of the fixed sleeve is connected to the balance bolt by thread, and the balance bolt is arranged on On both sides of the fixed sleeve, the upper end of the balance bolt is pushed against the lower side of the fixed rod, the upper end of the support rod is connected to the lower fixed cylinder, the upper side of the lower fixed cylinder is adapted to the upper fixed cylinder, and the two sides of the upper fixed cylinder are connected by screws The lower fixing cylinder is connected, and a sliding cavity is formed inside the lower fixing cylinder and the upper fixing cylinder, and the right side of the sliding cavity has a limiting protruding bar groove, and the limiting protruding rod grooves are symmetrically distributed on both sides of the sliding cavity.