Changyuan city alliance business is good. City Alliance is an electronic shopping platform for life consumption in the same city. Based on the idea that merchants make money and consumers save money, it integrates local catering, entertainment, shopping and other businesses to form alliance merchants, promotes brands, improves performance and increases sales through multi-channel operation, and helps consumers realize the value-added of personal consumption and meet the omni-channel demand of consumers through the business model innovation of cross-industry collaboration on the city alliance network platform. Through the city alliance website, we will provide local businesses in Yan 'an with services such as online shop opening, online sales of goods, activity promotion, preferential group purchase, online reservation, alliance card, city transaction, community forum, etc., and strive to create an O2O portal for local consumption.