The invention discloses a compact mung bean breeding method, which is used for solving the problems that the bred variety of an existing breeding method is high and the plant is large, the plant shape is loose, planting density is low, relatively late in the maturity is relatively late and the yield is low caused by low test densities of selective nurseries and mung beans by greatly improving the test densities of the selective nurseries and the mung bean, increasing selective pressure, and breeding the mung bean variety which is compact in plant shape, early in maturity and high in yield. According to the compact mung bean breeding method, the mung bean yield per unit area can be improved by 30%; the growth period of the mung bean variety is shortened; two important characters of early maturity and high yield are combined into one variety; the mung bean variety is relatively intensive to pod and is suitable for mechanized harvesting; and the lodging-resistance capability is improved.