从深基坑支护桩简化模型出发，建立弹性地基梁ＯＤＥ体系，综合运用ＯＤＥ变换技巧，将其控制方程、边界条件和连续条件化为标准区间上后，调用求解器直接求解．并对３ 种不同支撑情况的桩身挠度和弯矩作了分析比较．数值结论表明该方法简单明了且直接可靠，适用于岩土工程中线性或非线性ＯＤＥ体系问题的求解． Starting from the simplified model of deep foundation pit supporting piles, the ODE system of elastic foundation beam is established, and the ODE transformation technique is comprehensively applied. After the control equations, boundary conditions and continuous conditions are converted into standard intervals, the solver is directly solved. And analysis and comparison of the deflection and bending moment of the three different support conditions. Numerical results show that the method is simple, straightforward and reliable, and it is suitable for solving linear or nonlinear ODE system problems in geotechnical engineering.