China Blockchain and Cryptocurrency: Mining, Digital Currency, and Web3 Development
China's relationship with blockchain and cryptocurrency is paradoxical: the country banned cryptocurrency mining and trading in 2021, yet leads the world in blockchain patent filings and has developed the most advanced central bank digital currency (CBDC) in the form of digital RMB (e-CNY). China's blockchain industry has pivoted toward government-sanctioned applications including supply chain finance, trade settlement, and digital identity, while a gray market for crypto trading persists through decentralized exchanges accessed via VPNs.
TL;DR
Digital RMB (e-CNY) processed 9.6 trillion RMB in cumulative transactions across 26 pilot cities with 180M wallet users. China leads global blockchain patent filings with 40% share. Crypto mining ban drove 90% of Bitcoin hashrate overseas. China's blockchain market reached 80B RMB in 2025.
Key Insights
Digital RMB (e-CNY)
China's digital RMB has processed 9.6 trillion RMB in cumulative transactions with 180 million wallet users across 26 pilot cities. The PBOC continues expanding use cases including payroll payments, tax refunds, cross-border trade settlement, and smart contract-enabled programmable payments.
Blockchain Patents
China leads global blockchain patent filings with approximately 40% of all applications, driven by tech giants Ant Group, Tencent, Baidu, and Huawei. Ant Group's AntChain platform processes 1 billion+ transactions daily for supply chain finance and trade applications.
Crypto Mining Ban Impact
China's 2021 crypto mining ban drove approximately 90% of Bitcoin mining hashrate overseas to the US, Kazakhstan, and Canada. Prior to the ban, China controlled 65-75% of global Bitcoin hashrate. Some underground mining operations persist in regions with cheap hydroelectric power.
Enterprise Blockchain
China's enterprise blockchain market reached 80B RMB in 2025, growing 20% annually. Key applications include trade finance (50B+ RMB settled on blockchain), supply chain traceability (agriculture, pharmaceuticals), government services (electronic invoices, land registry), and cross-border payments.
Side-by-Side Comparison
| Area | China Status | Global Comparison | Key Players | Outlook |
|---|---|---|---|---|
| CBDC (e-CNY) | Most advanced globally | 26 pilot cities | PBOC, 6 major banks | National rollout by 2026 |
| Crypto trading | Banned since 2021 | Gray market persists | Binance (offshore) | Ban likely to continue |
| Crypto mining | Banned since 2021 | 90% hashrate moved | Former miners relocated | Underground operations persist |
| Blockchain patents | 40% global share | World leader | Ant, Tencent, Baidu | Continued leadership |
| Enterprise blockchain | 80B RMB market | 2nd largest globally | AntChain, Tencent Cloud | 20% annual growth |
| NFT/Digital collectibles | Restricted (no trading) | Grey market | Whale Explorer, Magic Box | Tightly regulated |
| Web3/Metaverse | Cautiously encouraged | Limited compared to West | Baidu XiRang, Tencent | Enterprise-focused |
Frequently Asked Questions
Cryptocurrency in China exists in a complex legal gray area with several clear prohibitions: cryptocurrency trading between individuals and on exchanges is banned since September 2021, when the PBOC, NDRC, and 10 other agencies jointly announced that all cryptocurrency-related business activities are illegal financial activities; cryptocurrency mining is banned since June 2021, classified as an energy-intensive and high-emission industry to be eliminated; initial coin offerings (ICOs) and token fundraising have been banned since 2017; foreign crypto exchanges are prohibited from providing services to Chinese residents, with Binance, OKX, and Huobi all restricting Chinese IP access; however, owning cryptocurrency as an individual is not explicitly illegal, as Chinese courts have ruled that holding crypto constitutes virtual property protected under civil law; peer-to-peer crypto trading and over-the-counter (OTC) transactions persist through messaging apps and offshore platforms accessed via VPNs; the PBOC has explicitly stated that the digital RMB (e-CNY) is the only legal digital currency in China and is not a cryptocurrency; penalties for violating crypto trading bans include fines, business license revocation, and criminal prosecution for large-scale operations; and enforcement has been increasing, with multiple OTC trading platforms shut down and individuals prosecuted for facilitating crypto transactions. In summary, while individual crypto ownership exists in a legal gray zone, all commercial crypto activity (trading, mining, exchanges, ICOs) is illegal in mainland China.
China's digital RMB (e-CNY) is widely considered the most advanced central bank digital currency globally in terms of scale and functionality: by transaction volume, e-CNY has processed 9.6 trillion RMB in cumulative transactions, far exceeding all other CBDC pilots combined, with Nigeria's eNaira at approximately 1 billion USD and the Bahamas' Sand Dollar at approximately 10 million USD; by user base, e-CNY has 180 million registered wallet users across 26 pilot cities, while the next largest CBDC pilot (India's digital rupee) has approximately 50 million users; technologically, e-CNY supports several advanced features including offline payments (no internet required), smart contracts for programmable payments (e.g., government subsidies that can only be spent on designated goods), controllable anonymity (small transactions are anonymous but large ones can be traced), and cross-border settlement capabilities; in terms of architecture, e-CNY uses a two-tier system where the PBOC issues digital currency to commercial banks (tier 1), which then distribute to the public (tier 2), combining central bank control with commercial bank innovation; compared to the EU's digital euro (still in preparation phase) and the US digital dollar (only in research phase), China is 3-5 years ahead in deployment; however, e-CNY faces challenges including relatively low daily active usage (many users have wallets but use them infrequently), merchant adoption gaps outside of pilot cities, and public preference for existing mobile payment apps (Alipay, WeChat Pay); and the PBOC has indicated plans for national rollout by 2026-2027.