Abstract：With the development of urban construction，more and more researchers are aware of the importance of utilization of underground space. Uplift piles are widely used for resisting uplift loads of underground structures. However，there are few research results about uplift piles. Most research results of uplift piles are focused on the uplift capacity，but the study on the deformation of uplift piles is very few. The method of deformation of uplift piles presented by Sulaiman in 1976 is modified；the displacement on top of the uplift pile is adjusted by dichotomy. At lower load levels，the modified method of deformation compatibility can predict the displacement of the uplift piles satisfactorily. The efficient procedure corresponding to the method is given in order that the method can be applied in practice. The influence of the parameters of pile and soil on the deformation of uplift piles is studied by the procedure. The results can provide references to the design of uplift piles. Compared with the load-settlement responses for the model pile test results and the test pile test results，this method can give reasonable results.
