A new soybean variety called Jinyi 31 was created by crossing two different soybean plants. It has high yield and good quality, with a protein content of 41.95% and fat content of 23.62%. Jinyi 31 is resistant to certain diseases and is suitable for growing in specific regions of China. In tests, it showed higher yields compared to other varieties, making it a good choice for farmers looking to grow soybeans.