The genus Brassica, phylogenetically related to Arabidopsis thaliana, is one of economically important crops and a botanical model of plant polyploidization and rapid phenotypic evolution. We established the Korea Brassica Genome Resource Bank (KBGRB) in order to supply basic plant materials for structural/functional genomics and breeding of Brassica. Since the establishment of KBGRB in 2004, KBGRB has supported genomic materials for Multinational Brassica Genome Sequencing Project and collected over 10,000 accessions of Brassicas from different areas in the world. KBGRB has collected seeds including inbred lines and mapping population of various Brassica species, and DNA stocks including BAC libraries and cDNA libraries of Brassica rapa. Moreover, all germplasms of KBGRB have been propagated, maintained, and distributed to the scientists in the world. Currently, KBGRB has collected 11,041 accessions of Brassica species, 33,159 clones for cDNA libraries, and 222,336 clones for BAC libraries, and 1,398 genetic markers. KBGRB has distributed more than 621,345 clones, 280 genetic markers and 6,210 accessions of seed to researchers over 10 countries since 2004. Information and other requests for genomic resources of Brassica are accessible at http://www.brassica-resource.org.