The objective of the National BioResource Project (NBRP) in Japan is to collect, conserve and distribute biological materials for life sciences research. The project consists of twenty-eight bioresources, including animal, plant, microorganism and DNA resources. We have also developed a “LegumeBase” a specific database for the genera Lotus and Glycine, and are maintaining this database as a part of the NBRP. Lotus japonicus is a perennial legume that grows naturally throughout Japan and is widely used as a model plant for legumes because of such advantages as its small genome size and short life cycle. Soybean (Glycine max) has been cultivated as an important crop since ancient times, and numerous research programs have generated a large amount of basic research information and valuable bioresources for this crop. NBRP Lotus and Glycine aims to support the development of legume research through the collection, conservation, and distribution of these bioresources.