Because of the high bearing resistance of the rock-embedded pile, it is expensive to conduct prototype test with the static load and it is hard to get to the point of the damage. So it is necessary to simulate the character of the rock-embedded pile under high load by numerical method. In this paper, threedimension finite element method is introduced to simulate the behave of the rock-embedded pile. The model of Drucker-Prager is considered as suiting to the soil and the rock. And then the characters of the rock-embedded pile are analysed under different conditions. Finally, the method is used in some practical engineering. The comparison between the results obtained by this method and data from the practical project shows good agreement in some degree.