Abstract: Ground settlement and uneven settlement control is an important part of the tank construction safety. This paper analyzes the settlement deformation characteristics of tanks foundation added gravel ring wall in detail. The settlement and uneven settlement differences are compared for storage tank foundations added with gravel ring wall or concrete ring wall along both ring and radial directions. The relationships between elastic modulus of gravel ring wall and foundation settlement rules are analyzed. The different reinforcement effects of rectangular concrete ring walls and trapezoidal gravel ring walls are compared. Engineering suggestions of gravel ring walls used to reinforce the tank foundation are given in the final. The research results can have a great significance to similar engineering projects.