The genetic linkage map was constructed by using one F2∶3 population of crossing BR96 with Bai56 and 122 molecular makers covering the whole rice genome.The quantitative trait loci (QTLs) for BPH resistance were identified based on marker geneotypes and the pheontypes of BPH resistance in rice seedlings.Totally three QTLs for BPH resistance were detected.QBph3 was detected in the long arm of chromosome 3 between the molecular markers RM489 and RM282,with a LOD value of 5.1 and explained 3.8% the phenotypic variation.QBph4 was detected in the chromosome 4 between the molecular markers RM16605 and RM16717,with a LOD value of 28.7 and explained 29.4% the phenotypic variation.QBph6 was detected in the short arm of chromosome 6 between the molecular markers RM276 and RM527,with a LOD value of 2.7 and explained 7.1% the phenotypic variation.Obviously,QBph4 with the largest effect among three identified QTLs may be a major QTL for BPH.