The Qi Jiajun (also known as the Yiwu soldiers and the Zhejiang army) formed an army in Yiwu, Zhejiang in the 38th year of Jiajing (1559), with a total strength of 4,000 people. The main force was farmers and miners in Yiwu.

The Qi Jiajun is named after Qi Jiguang. It is a very famous army in the Ming Dynasty. The Qi Jiajun is famous for its strict military discipline, professional training level, and the most advanced equipment in East Asia. A record of 100 victories and a record of more than 100,000 level cuts. Known as "the strongest army in East Asia from the 16th to the 17th century".