USDT (Tether), as a stablecoin pegged to the US dollar, is an important bridge for cryptocurrency trading. OKX, as a leading global digital asset trading platform, provides Chinese users with secure and convenient USDT purchasing and top-up services. The following is a complete guide from registration and download to purchasing, helping you quickly grasp the key operational points.
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Registering an OKX account for Chinese users
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Registration Preparation
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Valid email or phone number (Mainland China phone numbers require prefix +86)
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Strong password (must include uppercase and lowercase letters, numbers, and special characters)
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Registration Steps
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Visit the official website
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Open the OKX domestic official registration page without VPN via your browser: https://ouyijoin.com
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Fill in the information
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Click the "Register" button in the upper right corner → Enter your email → Set a password (must comply with security rules)
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Verify identity
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Enter the email verification code → Bind +86 phone number → SMS verification → Select residence as "China" → Agree to the terms of service
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Complete registration
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After submission, you will be automatically logged into your account and enter the backend management interface
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Common problem resolution
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Did not receive the verification email? Check the spam folder or change your email
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Identity verification failed? Ensure that the ID photo is clear and the information is consistent
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Downloading and installing the OKX official App
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Official download channel (safety first)
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Installation and login
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After installation, open the App → Enter registered email/phone number and password to log in
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The first login requires completing device security verification
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Troubleshooting
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App unresponsive? Uninstall and download the latest version again
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Unable to open the camera? Check phone permission settings
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Complete process for purchasing and topping up USDT
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Purchasing USDT with fiat currency (supports RMB payment)
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Log in to the App → Click "Buy Crypto" → Select "C2C Trading"
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Choose a seller → Enter the purchase amount (supports Alipay, WeChat Pay, bank transfer)
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Complete the transfer according to the seller's payment information → Confirm payment → The system will automatically release USDT to your account
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Top up USDT to your OKX account
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Log in to your account → Click "Assets" → Select "Top Up"
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Select currency USDT → Copy the top-up address or scan the QR code
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Transfer USDT from an external wallet/exchange → Wait for network confirmation (usually 10-30 minutes)
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Payment precautions
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Prioritize sellers with high reputation, verify transfer information to prevent fraud
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For large transactions, bank transfer is recommended, keep the receipt
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Essential settings to enhance account security
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Identity verification (KYC)
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Completing Lv.2 verification can increase transaction limits: upload ID card + selfie, wait for review
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Two-factor authentication (2FA)
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Enable Google Authenticator → Bind to your account → Dynamic verification code required for each login
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Asset protection mechanisms
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Withdrawal address whitelist: restrict funds from being transferred to unfamiliar addresses
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Cold and hot wallet isolation: 95% of user assets are stored offline to prevent hacking
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Quick reference for common questions
Question Solution Recharge not credited Check address chain type (e.g., TRC20/ERC20) Unable to bind Alipay Change seller or choose WeChat/bank payment Frequent login failures Enable anti-phishing code, check network environment
Through the above steps, Chinese users can efficiently complete OKX account registration, App download, and USDT purchasing and top-up. The platform's multiple security mechanisms (such as cold storage, AI risk control, third-party audits) safeguard assets. Visit OKX now to start your digital asset management journey.