In order to salvage and protect wild rice resources in Hainan Province， P.R. China， in November 2021， the Institute of Crop Science， Chinese Academy of Agricultural Sciences in cooperation with the Institute of Grain Crops， Hainan Academy of Agricultural Sciences carried out the investigation， ectopic protection and bacterial blight resistance of wild rice. In this study， 21 wild rice distribution sites in 17 towns of 11 cities/counties in Hainan province were investigated. It was found that 9 distribution sites were in an endangered state， 7 were damaged to varying degrees， and only 2 wild rice reserves are not disturbed and 3 distribution sites were slightly disturbed. 210 wild rice resources were collected and preserved in the National Wild Rice Germplasm Garden. In addition， the Philippine race 6 （PXO99）， which is highly aggressive with broad pathogenicity， was tested using artificial inoculation for bacterial blight resistance in this collection of 145 O. rufipogon Griff. and 47 O. officinalis Wall. ex G. Watt. Five accessions showing high resistance to bacterial blight were identified， which laid a rich material foundation for the research and breeding of resistance to bacterial blight in rice.