Abstract: Ningbodaqiao Chinese milk vetch is a unique local variety of green manure, which has a long history of planting in Ningbo City. The variety has the characteristics of high yield, good resistance and wide adaptability. The main characteristics such as growth habit, flowering habit, growth period, yield and nitrogen-fixing ability of Ningbodaqiao Chinese milk vetch were introduced in this paper. Then, the technologies of high yield and seed reproduction such as sowing, seedling management, field management, disease pest and weed control and seed harvesting were summarized.