[Objective] To compare and analyze the difference in the center of pressure (COP) between lumbar spinal stenosis (LSS) patients with neurogenic intermittent claudication (NIC) and healthy people, and verify the application value of COP parameter in objectively evaluate the balance function in patients with LSS.[Methods] 32 patients with LSS of L4/5 were selected as the experiment group, while 32 healthy adults at the same age were selected as the control group. Footscan? platform system was used to measure the plantar pressure of these subjects during walking. The balance function of LSS patients was evaluated by comparing the center of pressure (COP) displacement and COP velocity between the two groups. [Results] The COP displacement and velocity of the experimental group during the forefoot contact phase (FFCP) and the foot flat phase (FFP) were significantly increased compared to the control group, however, no significant differences in COP displacement and velocity were observed between the two groups during the initial contact phase (ICP) and forefoot push-off phase (FFPOP). [Conclusion] The balance function of LSS patients after the occurrences of NIC is significantly damaged. Using the displacement and velocity of COP during the FFCP and FFP can achieve an objective assessment of the dynamic balance function of LSS patients.