Buying Bitcoin has never been easier, especially with leading digital asset platforms like OKX streamlining the process for users worldwide. As one of the top cryptocurrency exchanges, OKX supports hundreds of trading pairs — including spot and futures markets — and serves over 20 million users across 200+ countries and regions. Whether you're new to crypto or expanding your investment portfolio, this comprehensive guide walks you through every step of registering an OKX account, completing identity verification, purchasing USDT, and ultimately buying Bitcoin (BTC) securely.
Step 1: Register Your OKX Account
To begin your journey into the world of digital assets, you'll first need to create an account on OKX.
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Follow these simple steps:
- Visit the official OKX website and click the [Register] button.
- Enter your phone number (use +86 for mainland China) or email address. For this guide, we'll use a mobile number.
- If available, enter referral code 41322075 — doing so grants you a permanent 20% discount on trading fees.
- Input the verification code sent to your phone.
- Select "China" as your country of residence.
- Create a strong password that meets security requirements, then confirm it.
Once completed, your account is active and ready for use. However, to unlock full functionality — including withdrawals and higher trading limits — it’s essential to enhance your account security and complete identity verification.
After logging in, navigate to Profile > Personal Center. Here, focus on securing your account by enabling two-factor authentication (2FA), setting up anti-phishing codes, and linking recovery options.
Step 2: Download the OKX Mobile App
For a smoother and more intuitive experience, we recommend using the OKX mobile app, available for both Android and iOS devices.
Android Users
- Click the secure download link to get the APK file directly.
- If your device warns about potential risks, ignore the alert — this is common with third-party crypto apps.
- Disable "Pure Mode" or temporarily turn off Wi-Fi/data during installation if blocked.
Alternatively, scan the QR code using your browser to access the download page.
iPhone Users
- The OKX app isn’t available on the Chinese App Store.
- You’ll need a non-mainland Apple ID (e.g., registered in the U.S. or another region).
- Log out of your current Apple ID in the App Store settings, then log in with your overseas account.
- Search for “OKX” or “欧易”, download, and install the app.
Having the app gives you real-time access to markets, instant notifications, and faster trade execution — ideal for active traders.
Step 3: Complete Identity Verification (KYC)
Before buying cryptocurrency with fiat money, you must complete Know Your Customer (KYC) verification.
Here’s how:
- Open the OKX app and log in.
- Tap [Verify Now] or go to Security Settings > Identity Verification.
- Choose "China" as your country and "ID Card" as your document type.
- Follow the prompts to upload clear photos of both sides of your government-issued ID.
- Ensure all information is accurate and submit for review.
Verification typically takes just a few minutes. Once approved, you’ll gain access to advanced features like higher deposit/withdrawal limits and P2P trading capabilities.
Step 4: Buy USDT Using Fiat Currency
Tether (USDT) is a stablecoin pegged 1:1 to the U.S. dollar, making it a popular gateway for entering crypto markets.
To buy USDT:
- On the OKX app homepage, tap [Buy Crypto] > [Quick Buy].
- Select USDT from the list of cryptocurrencies.
- Enter the amount you’d like to purchase in CNY.
- Tap [Choose Payment Method] and select WeChat Pay, Alipay, or Bank Transfer. We’ll use WeChat Pay as an example.
- Confirm the amount and estimated USDT you’ll receive, then tap [Buy USDT].
You’ll be redirected to a P2P order page where a seller provides their payment details.
Important Tips During Payment:
- ❌ Do not mention words like “crypto,” “USDT,” or “buying coins” when communicating with the seller.
- ✅ Use only your own verified account for payment — third-party payments risk account freezing.
- 🔍 Double-check that the recipient's name matches the one shown on the order.
- ⏳ Only click [I’ve Paid] after successfully sending funds via WeChat. The seller will release USDT upon confirmation.
Within moments, your purchased USDT will appear in your funding wallet. You can view it anytime under the Assets tab.
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Step 5: Transfer Funds & Buy Bitcoin
Now that you have USDT, it's time to trade it for Bitcoin.
Step A: Transfer USDT to Your Trading Account
By default, newly bought USDT resides in your funding wallet, which doesn’t support direct trading.
To fix this:
- Go to Assets > Fund Transfer.
- Transfer from Funding Account to Trading Account.
- Select USDT, enter the amount (or tap Max), then confirm.
Step B: Execute Your Bitcoin Purchase
- Tap [Trade] on the home screen and select Spot Trading.
- In the search bar, type BTC/USDT to find the Bitcoin trading pair.
- Under the trading panel, select Buy.
- Choose Market Order for instant execution at current market price.
- Enter the amount of USDT you want to spend, or adjust via slider.
- Tap [Buy BTC] to complete the transaction.
Congratulations! You now own Bitcoin on OKX.
Your BTC balance will be visible under Assets, and you can choose to hold, trade, or withdraw it at any time.
Frequently Asked Questions (FAQ)
Q1: Is OKX legal for users in China?
While individuals in mainland China can access OKX services, they cannot use domestic banking channels for crypto-related transactions due to regulatory restrictions. However, P2P trading remains functional using third-party payment methods like WeChat and Alipay.
Q2: How long does identity verification take?
Most verifications are completed within 1–5 minutes. In rare cases involving document issues, it may take up to 24 hours.
Q3: Can I buy Bitcoin directly with CNY?
Yes — through P2P trading on OKX, you can directly purchase USDT with CNY via WeChat or Alipay, then exchange it for Bitcoin instantly.
Q4: Are there fees for buying Bitcoin?
OKX charges minimal trading fees (as low as 0.1%), with reductions available through referral programs or holding OKB tokens.
Q5: What should I do if my account gets frozen?
Ensure all transactions are made from your personal verified accounts and avoid suspicious activity. Contact OKX customer support immediately if issues persist.
Q6: Is storing Bitcoin on OKX safe?
OKX employs enterprise-grade security measures including cold storage, multi-signature wallets, and regular audits. For long-term holdings, consider transferring BTC to a private hardware wallet.
Final Thoughts
Buying Bitcoin on OKX is fast, secure, and accessible — even for beginners. From registration to final purchase, the entire process takes less than 15 minutes with proper preparation. By following best practices around security and compliance, you can confidently enter the world of digital assets.
Whether you're investing for growth, diversification, or curiosity, starting with a trusted platform makes all the difference.
👉 Begin your crypto journey today with fast transactions and strong security protections built in.