The article highlights the vibrant agricultural activity in Zhangjiakou, Hebei, particularly in the Bashang area, where farmers like Wang Bin are successfully cultivating cold vegetables, including broccoli and celery, during the golden autumn season. These vegetables are grown using pollution-free technology and are highly valued for their quality, fetching good prices not only in the Beijing-Tianjin market but also in other cities and countries. The article also emphasizes the contribution of the Supply and Marketing Cooperative in connecting farmers with the market and the role of Zhangjiakou in providing vegetables during off-seasons for Beijing and other cities. The city's efforts to increase the vegetable planting area, diversify vegetable varieties, and establish leading vegetable enterprises have led to the establishment of many vegetable wholesale markets, contributing to a significant portion of the city's economy.