In daily life, as people age or their physical condition changes, many people may face the challenge of mobility problems. Whether it is the daily activities of the elderly or the walking assistance of patients in rehabilitation, walkers have become an indispensable auxiliary tool. In recent years, with the advancement of technology and a deeper understanding of user needs, the design of walkers has become more humane and diversified, especially rollator walker with seat, which not only provide users with support when walking, but also add the function of rest, greatly improving the convenience and comfort of use.