Abstract: In order to study the restoring or remaining characteristics and the distribution of restoring resources, 441 rice germplasm resources from Asia, Europe, Africa, North America and South America were detected through test crossing screening, which also would provide excellent parents for efficient breeding of restorer line or maintainer line. Using WA-CMS line ‘Ming 218A’as the female parent, 441 germplasm resources were selected as the tester. The restoring or remaining characteristics of the rice resources were identified by the natural seed setting rate, and the results showed that the number of resources with restoring ability, remaining ability and the middle type were 53, 43 and 333, respectively. According to the distribution of restoring varieties, there were 33 varieties from Asian countries (regions), accounting for 62.3% of restoring resources. 6 restorable varieties were from USA, accounting for 31.6% of USA germplasm resources ,which indicated that the USA germplasm resources contained more restorable varieties. Only 2 restorable varieties were identified from European, accounting for 5% of the European germplasm resources, which indicated that Europe had fewer restorable resources. Correlation analysis was carried out by the mean values of the seven important traits of F1 and the male parent, the plant height (r=0.97**), 1000-grains weight (r=0.934**) and panicle length (r=0.747**) had significant relationship with the male parent, while the other 4 traits were not significantly related with the male parent. The desending order of relevance was plant height, 1000-grains weight, panicle length, panicles of per plant, spikelets of per panicle, filled spikelets of per panicle, natural seed setting rate. In our study, resources with high restoring ability were distributed in all five continents, mainly in the East Asia, South Asia and Southeast Asia and USA. The plant height, 1000-grain weight and panicle length of the restorer line had more obvious effect on the hybrid F1.