During the Mid Autumn Festival and National Day holiday, besides "playing and playing", there is also a natural need for "buying and buying". During the Double Festivals this year, many places held themed consumption promotion activities and distributed red envelopes for digital RMB consumption vouchers. In recent years, the pilot project for digital RMB has been continuously promoted, and relevant policy support, application scenarios, and supporting services have been increasingly improved. The digital renminbi is gradually entering daily life, allowing consumers to truly feel convenient and affordable. The application scenarios are constantly expanding. "Recently, I learned to pay subway tickets in digital RMB, opened the Tianjin Metro app, and signed an online payment agreement with China Construction Bank's digital currency agreement. Through the app, I can scan the code by car and pass through the gate, achieving automatic deduction without confidentiality." said Wang Xiaoqin, a resident of Liqizhuang Street, Xiqing District, Tianjin. There are many similar application scenarios for digital RMB in Tianjin. Since being approved as the third batch of pilot cities for digital RMB in April 2022, Tianjin has implemented the application of digital RMB in all 16 general and characteristic scenarios, including retail, public transportation, salary distribution, fund transfer, digital exhibitions, and port logistics. In the past three years, the pilot work of Shenzhen's digital RMB has successfully achieved three major leaps from tasting to commonly used, from payment to intelligent payment, and from product to industry. "Sun Rongjian, Director of the Currency Issuance Department of the Shenzhen Branch of the People's Bank of China, said that the Shenzhen digital RMB ecosystem is becoming increasingly perfect, gradually achieving full coverage of six major fields of digital RMB application scenarios, including daily consumption, daily payment, transportation, education and medical care Sports, tourism, government services, and other fields. Li Wenfeng, Vice President of Postal Savings Bank Shenzhen Branch, stated that in recent years, Postal Savings Bank Shenzhen Branch has continued to make efforts in promoting the incremental expansion of digital RMB applications and improving the ecosystem, achieving innovative application scenarios in fields such as smart government, transportation, and retail supermarkets, and successfully distributing the first digital RMB salary in the construction and decoration industry nationwide, Jointly with the Luohu Shuibei Jewelry Business District, we have created the first fully covered application scenario for the gold jewelry industry chain in China. As one of the first pilot cities for digital RMB in China, Chengdu has orderly promoted the construction of application scenarios in various fields such as living expenses, catering services, transportation, and shopping consumption. The "14th Five Year Plan for the Development of the Financial Industry in Chengdu" proposes to rely on the advantages of digital RMB pilot projects, improve the application ecosystem of digital RMB, build a digital RMB application space for all scenarios such as rural benefits, smart people's livelihoods, and government services, and accelerate the implementation of branches of the People's Bank of China's Digital Currency Research Institute. Recently, Chengdu opened a digital RMB small and micro merchant business for taxis and proposed to gradually promote it to taxis throughout the city. Previously, although some cities have promoted digital RMB in taxi ride scenarios, promoting the digital RMB taxi payment scenario to the entire pilot city is still a national initiative. With the rapid application of digital renminbi, how to keep up with the related software and hardware has become one of the problems facing pilot cities, as supporting services accelerate and improve. Not long ago, Tianjin's first digital RMB hardware wallet was launched, becoming the first attempt by the "operating institutions+2.5 layer cooperative banks" in the China Construction Bank system to jointly issue hard wallets. what