During the Qianlong reign, the Qing government successfully conducted trial plantings of peas and promoted pea planting in the process of unifying Xinjiang. In the early period of Qing rule in Xinjiang, the pea planting areas were along the North Tianshan Route, and included Hami, Bar Kun, Urumci, Ili and Tarbahatai, and along the South Tianshan Route, and included Haraxari, Yerkim, Khotan and other places. The cultivation of peas in Xinjiang played an important role in the Qing dynasty’s control of its northwestern frontier. Pea cultivation supplied the military, saved money, promoted agricultural production, and enriched the residents’ diet.