Abstract: This study presents the vibration control of corridors under the crowd load by setting obstacles.In this study,the classicsocial force model is improved by considering the pedestrian sight and obstacle domain,and the crowd movement is simulated to apply the improved model.The goveming equation of corridor vibration under the crowd load is established and solved.The steel structure corridor of a shopping mallis taken as an example.The crowd movement characteristics,such as crowd velocity,are discussedby setting obstacle and the vibration response of corridor is analyzed.The vibration reduction mechanism ofthe structure is explainedfrom the point of view of energy.The numerical results show that the maximum decrease rate of pedestrian's average walking speedis 9.1%when the obstacles are laid out.The higher the vibration reduction rate is with the increase of the number of obstacles.Inmost cases,the vibration reduction rate can reach more than 10%,and the maximum vibration reduction rate can reach 30%.Theenergy input to the structure is significantly reduced,and the reduction rate is positively correlated with the number of obstacles.