Abstract: Depending on the mode from points to surfaces and from surfaces to three dimension space, and the establishment of three types of safety factor, this paper establishes a set of design method of stabilizing piles synthetically applying the ultimate bearing capacity theory of stabilizing piles and the concept of circle resistance. It summarizes the design of stabilizing piles into an optimized numerical model; the results obtained by using the simulated annealing algorithm to solve the model agree with the practical experience.