Systematic and professional rehabilitation training is generally effective for patients with lower limb dyskinesia, but most of them lose the chance of recovery due to failure to receive systematic rehabilitation treatment. Our team has developed an intelligent power armor for patients with lower limb motor dysfunction, which can assist patients to complete high-quality rehabilitation training. In order to evaluate the safety and efficacy of the Smart Power Armor for post-surgical spine patients, and to provide data support for a confirmatory clinical study, we designed a single-center, prospective, randomized controlled study to compare the level of recovery of lower limb motor function in patients with different rehabilitation strategies.