A connecting rod coordination-type breast stroke training machine does not adopt an electric motor, and reduces the possibility that a trainer is injured in exercises; support posts are adopted to support the wrist part and the ankle joint part, and the structure is simple and compact; connecting rods are adopted to approximately achieve hand tracks and foot tracks for the breast stroke, the accurate and normalized tracks can be achieved, and approximate spherical tracks of hands can be achieved and can better fit into standard breast stroke actions compared with the plane tracks; an intermittent mechanism is adopted to achieve the action coordination between hand parts and leg parts, and a practicer can learn the action sequence of the breast stroke; meanwhile, the connecting rod coordination-type breast stroke training machine achieves wide adaptability for practicers with different heights, arm lengths and leg lengths; in addition, the connecting rod coordination-type breast stroke training machine is easy to control, has low cost, is convenient to assemble and maintain, and is very suitable for a breast stroke beginner to practice swimming stroke actions.