Bleeding in the brain stem causes quadriplegia with only weak muscle strength throughout the body. Over the past nine years, Xiao Zhong (a pseudonym) and his family have never given up. They have tried their best to persist in any method that can be tried, but they have never been able to break through the shackles of weakness. Until he used the step brain-controlled lower limb rehabilitation robot, the brain-computer interface successfully captured his brain signal, and the robot slowly drove his legs to complete the first step. At the moment when he completed the first step, he froze, tears burst into his eyes without warning, and kept sliding down his cheeks. He murmured "I moved... my legs...", and his voice was almost inaudible, all the emotions are turned into tears, to release.# Step Robot# Brain-Computer Interface# Rehabilitation Robot