Genetic resource exploration and collection of Brassica vegetables called “Mohn Nyinˮ were carried out in the southern Shan State (from Kalaw to Taunggyi) in the Republic of the Union of Myanmar from November 17 – 28, 2019. This survey was conducted jointly by the Department of Agricultural Research, Ministry of Agriculture, Livestock, and Irrigation, Myanmar, and the Tokyo University of Agriculture, Japan. In this collaborative survey, 43 accessions were collected: 27 accessions of Brassica juncea (L.) Czern., 4 of Brassica rapa L., 3 of Brassica oleracea L. (Alboglabra Group), 8 of Brassica spp., and 1 of Raphanus sativus L. The samples from these 43 collections were divided into two parts; one was stored in the Myanmar Seed Bank and the other introduced into Japan under the Standard Materials Transfer Agreement (SMTA) and stored at the Genebank of the National Agriculture and Food Research Organization (NARO Genebank). Multiple seeds will be distributed for agricultural research, breeding, and educational purposes as the useful genetic resources.