Abstract: On the basis of primary formulas of normal bearing capacity of concrete members with round cross-section subjected to eccentrically compressive loads, and considering the stress characteristics of the cast-in-place pile with round cross section in the engineering of foundation pit, the calculating formulas of uniform steel in the cast-in-place pile are deduced. Consequent ly, the corresponding calculating program is designed by visual software Delphi 6.0. And finally, with the validation of a practical example, it shows that this program is effective and accurate.