Finite element model is constructed for the analysis of buried pipeline damage under fluid structure interaction （FSI） and fault movement by the application of ADINA-FSI. Modeling of solid and fluid model is analyzed

and model solution under fluid-structure interaction is introduced

displacement loads of faults movement are applied

and parameters of the model are defined through model preferences. Pipe is treated as bilinear elastic-plastic material and liquid is impressive material with constant properties

such as viscosity and density. Furthermore

velocity load is applied to surface by definition of load type of velocity. According to the calculating results

the influence of density and velocity of fluid on the damage of buried pipeline is analyzed. The larger the density and velocity of the fluid in pipe

the worse the pipeline damage

therefore

density and velocity of the fluid in pipe should be generally considered when buried pipe is designed. Finally

some suggestions for the design and protection of buried pipeline is made.