Abstract: The SCF-SW-X_α method used for polyatomic molecules is programmed via a TQ-16 computer. The calculation has been done for molecules MnO₄-and CH₄ and the results are presented. In comparison with the same kind of calculationfon MnO₄^- given by Johnson, all of them are approximate except a pair of adjacent levels, i. e. 6a1 and 6t2, are reversed in magnitude. Thus, it seems worthwhile to compare them with the results of ab initio calculation, and some preliminary analysis has been made to interpret this discrepancy. Also, a part of results are compared with experimental data.