1. Different colors: The colors of soybeans are usually light yellow, white yellow, thick yellow and dark yellow. The color of mung bean is turquoise, also called green adzuki bean.

2. Different sizes: soybeans are spherical or ellipsoidal, with a diameter of about 4 to 5 mm, and mung beans are usually 3 mm in diameter.

3. Different categories: Soybean belongs to soybean category and is rich in protein. Mung beans belong to miscellaneous beans and are carbohydrates.

3. Different growth conditions: Soybean likes temperature and is sensitive to light conditions. Mung beans grow in neutral or weakly alkaline soil and belong to short-day crops.