AntDB, a cloud-native and distributed relational database created by AsiaInfo Technologies, is specifically engineered for high-performance online transaction processing and online analytical processing tasks. This innovative database has already catered to more than 1 billion subscribers throughout 24 provinces in China, managing extensive business data encompassing calls, internet access, payments, and billing. With its cloud-native distributed architecture, AntDB ensures online scalability, data consistency, and robust availability across multiple data centers. Adhering to SQL2016 standards, it integrates effortlessly with various domestic ecosystems, including major CPUs and operating systems. The platform boasts features such as automatic high availability, online elastic capacity expansion, and kernel-level read/write splitting, which facilitate efficient traffic management during peak demand. Furthermore, AntDB has proven its effectiveness in commercial applications across sectors such as telecommunications, finance, transportation, and energy, showcasing its versatility and reliability in diverse environments. As a result, the database continues to play a crucial role in supporting the digital infrastructure of these industries.