The development and utilization of wild rice genetic resources are increasingly important given the fact that the genetic resources in cultivated rice (Oryza sativa L.) gene pool are insufficient to sustain the requirement in modern rice breeding. Although China hosts the world's largest collection of cultivated rice germplasm accessions, a large-proportion of stocks were domestically collected plus the alien wild germplasm accounting for only 10%. The wild rice germplasm resources, which are locally adapted to the diversified climates and habitats in countries from South and Southeast Asia, represented the high potential value in genetic development and breeding in China. In this paper, via summarizing the field surveys and the collections of wild rice (Oryza rufipogon and O. nivara) in 10 South and Southeast Asian countries from 2009 to 2019, 1166 samples from 66 populations were collected.Considering the ecotypes of Oryza rufipogon and O. nivara as well as environmental conditions in South and Southeast Asiancountries, we proposed suggestions for future collection of wild rice resources in this region.