Cement mixing pile has been widely used and concerned in the application of soft foundation treatment due to its advantages of fast construction speed,easy controlled quality and low cost.In this paper,the feasibility of strengthening embankment with cement mixing pile is studied by using finite element method,and the effects of mixing pile length,pile diameter,pile strength parameters c and φ are analyzed.The results show that the anti sliding stability safety factor of embankment can be effectively improved by using cement mixing pile reinforcement.The safety factor increases with the growth of cement mixing pile diameter and pile length,and decreases with the reduction of cement mixing pile c and φ in a certain range.From the perspective of anti sliding stability of embankment body,there is an effective pile length of cement mixing pile.After exceeding this length,the safety factor of embankment body will not increase with the increasing pile length．