According to the 21st Century Business Herald, since the blockchain technology entered the public view in 2016, major cities in China have already been laid out in advance. Based on factors such as the number of patents, the number of companies and industry reputation, the “first camp” of China's blockchain has reached consensus in the industry – the first echelon of the five cities of Beijing, Shanghai, Guangzhou, Shenzhen and Hangzhou. In terms of patent volume, the total number of patent applications in China's blockchain reached 11,970, and the four cities with the largest number of patent applications were Beijing, Hangzhou, Shenzhen and Shanghai. From the perspective of the number of blockchain alliances, there are currently 8 blockchain alliances in China. Shanghai ranks first in the country with four blockchain alliances, and two in Beijing and Shenzhen. Different cities “genes” also determine the focus of each urban development blockchain. Beijing focuses on the direction of the industry. In contrast, Shanghai and Shenzhen, as “financial towns”, pay more attention to the exploration of blockchain financial attributes. Guangzhou foreign trade gene is strong, blockchain application development pays more attention to the combination of trade. Hangzhou has gained a huge dividend in the Internet era, and hopes to continue in the blockchain era.