Abstract: In order to study the influence of the installation of inclined piles in the high-pile cap foundation on the horizontal bearing capacity of the foundation,the inclination angle of the inclined pile,the vertical load magnitude and the inclined direction of the inclined pile on the lateral displacement of the inclined pile cap were analyzed through finite element analysis.The results show that when the tilt angle of the inclined pile is within 10°,the load on the upper part of the foundation is the same.The larger the tilt angle,the smaller the lateral displacement of the cap and the higher the lateral bearing capacity.The vertical load can significantly affect the pile cap of the inclined pile.When the horizontal load is constant,the greater the vertical load,the smaller the lateral displacement of the cap.The influence of the inclination direction of the inclined pile on the lateral displacement of the inclined pile cap is mainly controlled by the vertical load.When the vertical load is downforce,the lateral displacement of the negative inclined pile cap pile foundation is significantly smaller than that of the positive inclined pile cap pile foundation.It can be concluded that the horizontal bearing capacity of the high-pile cap foundation can be effectively improved by reasonably setting the inclined piles.When the foundation pressure is constant and the inclination angle of the negative inclined pile is 10°,the horizontal bearing capacity of the high-pile cap foundation is the largest.