Based on the Winkler footing beam model and the theory of finite element method,a calculation method to solve the displacement and bending moment of partially embedded lateral load-bearing pile under complex lateral loading was proposed.The validity of the proposed method was verified by comparing the calculation results in proposed method with the results of classic calculation example and the field experimental results.Finally,through the analysis on the calculation example,this paper analyzed the influence of the scouring action of current and the constraint conditions at the pile head on the displacement and bending moment of the partially embedded pile body.The analysis results show that the constraint conditions at the pile head should be considered when the impact of scouring on the lateral bearing capacity of pile foundation is being studied.The proposed method in this paper is effective to carry out computational analysis on partially embedded load-bearing pile under complex lateral load.