Mungbean, also known as green gram, is widely grown in temperate, subtropical, and tropical regions. Owing to its nitrogen fixing, rich in nutritional substances, and long suitable sowing period, mungbean plays many valuable roles in soil fertility improvement, human dietary enrichment, cropping systems, and the processing of agricultural products. So, it is a crop with great potential to development in the world. New plant variety is an important component for agriculture. Mungbean variety development, popularization, and promotion greatly rely on the public sector, especially the international collaboration. In this chapter, we introduced the status of mungbean breeding in major countries like India, Myanmar, China, Thailand, the Philippines, Australia, Kenya, the Republic of Korea, and Pakistan. We also discussed the challenges and perspectives of mungbean breeding. We think that the major breeding objectives of mungbean should include high and stable yield, ideal plant types for cropping system and mechanical harvest, resistance to multiple diseases, tolerance to abiotic stresses, good seed quality for market demands, and food processing. The intra-specific cross will still be the main means of mungbean breeding in the future. And with the development of available molecular markers, molecular marker-assisted selection (MAS) would be the powerful method for mungbean breeding in the near future.