A new excellent cytoplasmic type of CMS line Sl0-2A in rice with typical abortion type (TAT)from Minghui 63 was obtained by in vitro culture. It possesses high percentage of exerted stigma with strong vitality, big opening angle of spikelet, high flowering rate before noon and iow percentage of cleistogamous spikelet. The relationship between restoring and maintaining of S10-2A is completely different from that of WA type, HL type and BT type.