"cadre design of the foundation ",which is up to the national standard of the People's Republic of China , gives the principle of cadre design of reinforced concrete. With the principle of the standardized structure design given in the literature, the specific calculative formula is deduced. During the formula deduction process, there exits some obvious conceptual errors, which lead to problems in the calculation formula of the design of foundation structure. Analysis the problems in design of reinforced concrete of below-wall strip foundation and under-columniation independent foundation, point out the cause of the problems and detrude the accurate calculative methods of these cadre design. Via the calculative examples, compare the difference of calculative results and the results of original method, prove that the accurate calculative methods are consist with the theory analysis.