The paper takes Wanshou Temp Pagoda as an object of study. It is the study about the mechanism of the rectification and reinforced the masonry pagodas in different stiffness foundation. Tower with foundation is established collaborative working analysis model by adding the ring beam, the combination of ring beams with ground beams, and the concrete pallet respectively. The numerical computation compares and analyzes the variation of three foundation stiffness caused by changes in the force, Also discussed the impact of the foundation stiffness on the dynamic characteristics of the tower, The results show that foundation stiffness increases, the stress of the tower consequent weaken, the stress state and the stability of the tower under static loads has improved; foundation stiffness increases, the tower body vibration frequency increases, changes of foundation stiffness is more obvious to the high vibration mode.