Abstract: Taking into account the different conditions such as cylinder diameter,the ratio of cylinder height to diameter,the ratio of cylinder diameter to embedded depth, and different foundation, a series of model tests are carried out to study the behaviour of foundation pressure and the earth pressure distributions along the inside and outside of cylindrical wharf structure with large diameter. Firstly,the test model and test method are presented in detail. And then earth pressure distributions along the different sides of cylinder and foundation pressure are expounded.