 This research proposes a novel variable stiffness energy storage assisted hip exoskeleton, SESH, for walking assistance. The SESH stores energy from the wearer's movements and uses it to provide assistance. It also optimizes the stiffness of the exoskeleton to reduce muscle fatigue and improve assistance. This research shows that the SESH can provide better assistance than traditional fixed stiffness exoskeletons. This article was authored by Bing Shanhu, Fung Chen Liu, Kuchang, and others.