The origin of soy rice is from the Qin Dynasty.

According to Baidu Encyclopedia information, there were already bean foods in the Qin Dynasty, which were the main food for ordinary people. The beans were boiled and made into "soy rice".

Soybean rice, also known as five-bean rice, is a cooked food made from a mixture of five types of beans: peas, soybeans, soybeans, mung beans, and cowpeas.