An exploration and collection survey was conducted from December 20th, 2017, to January 15th, 2018, under collaboration between Tokyo University of Agriculture (TUA) and the Department of Agriculture Research (DAR), Myanmar. The surveyed areas were the Yangon Region, two townships in the Bago Region, Magway Region, Sagaing Region, three townships in Chin State, Mon State, and two townships in Kayin State, Myanmar. Genetic resources were collected from farmlands, farm houses, local markets and the areas surrounding the administrative offices of the Ministry of Agriculture, Livestock and Irrigation (MoALI). Seventy six samples were collected in total, including 43 Brassica juncea, 11 Brassica oleracea L. Alboglabra Group, 5 Brassica oleracea L. Capitata Group, and 15 Raphanus sativus L. and two of R. sativus L. var. caudatus. The collected genetic resources were divided between the Myanmar Seed Bank and the TUA; those taken to Japan were done as per the Standard Material Transfer Agreement. B. juncea has been used for various purposes, including as a leaf vegetable, for pickles and oil, as observed in the reports of previous investigations. However, in Chin State, mustard was mainly used for preserved meals and mustard oil was not widely cultivated. In addition, we observed propagation methods not found in other areas, such as propagation with cuttings, due to the perennial natures of cabbages and kailan.