The restoring degree, average heterosis and standard heterosis of the 19 combination produced by T, K, V, A-cytoplasmic A-lines and five R-lines were studied.The R-lines which appropriate to the six A-lines were selected. It also was pointed out that we should use International Method in studying the resotring degree of K-type cytoplasmic A-line. The A-lines 'ability of being restored by the R-lines was affected by the facters in both cytoplasm and nucleus. And through analyzing the yielding components of these combinations, we obtained that the grain number per spike has the highest effect in the three yielding components for the cytoplasmic male sterile lines.