Quick answer: QR codes are the operating system of daily life in China — you scan to pay, to order food, to read menus, to register at attractions, to rent a shared power bank, and to follow official accounts. For a first-time foreign visitor, the two essential apps are Alipay and WeChat, both of which now support international credit cards and have built-in scan functions. Set them up before your flight and China becomes significantly easier.
Last reviewed: May 2026. App features and compatibility change frequently.
Where You Will Encounter QR Codes as a Traveler
| Situation | What you scan | How it works |
|---|---|---|
| Restaurant ordering | Table QR code | Scan → menu appears on your phone → order and pay in the mini-program. No waiter interaction needed. |
| Paying at shops | Merchant QR code | You scan their code, enter amount, confirm — or they scan your payment code. |
| Metro / bus | QR code in Alipay transport section | Generate a city-specific transit code, scan at the gate. Different cities use different codes. |
| Attraction entry | Booking confirmation QR | Scan at the gate to verify your reservation. |
| Shared power banks | QR on the charging station | Scan to unlock a power bank, return to any station of the same brand. |
| WiFi in some places | QR on a sign | Scan to connect (sometimes requires phone number verification). |
Setting Up Alipay and WeChat for QR Code Scanning
- Download Alipay and WeChat from your app store before departure.
- In Alipay: Go to Me → Settings → Account and Security → Identity Information → verify with your passport. Then add your international credit card in Me → Bank Cards.
- In WeChat: Go to Me → Services → Wallet → Cards → add your international card. Enable WeChat Pay International Visitor Mode if available.
- Test by sending RMB 1 to a friend or scanning a random QR code to confirm it works before you leave home.
- Both apps have a built-in “Scan” function — it is usually the first button on the home screen.
Common QR Code Problems and How to Solve Them
| Problem | Likely cause | Solution |
|---|---|---|
| Scan does nothing | Wrong app — WeChat QR needs WeChat scan, Alipay QR needs Alipay scan | Use the correct app for the correct QR code. |
| Payment fails | Card not verified, international transaction blocked by bank | Verify identity in app settings; notify your bank of China travel. |
| Can’t access mini-program | Some mini-programs require Chinese phone number | Ask staff to help — most restaurants will take your order manually if you can’t scan. |
| Transit code not working | Wrong city — each city has its own transit QR in Alipay | Switch to the correct city in the Alipay transport section. |
Use QR codes in China safely
Search for 二维码 / erweima. QR codes are used for payment, menus, tickets, account login and information pages.
A simple workflow
Keep Alipay or WeChat ready, but check the page title and merchant before confirming payment. Check the merchant, page title and amount before confirming any action.
- Use mobile data you trust instead of an unknown open Wi-Fi network.
- Take a screenshot before closing a ticket, booking or payment page.
- Never share a login or payment verification code with a stranger.
- Keep a translation and payment backup ready.
When it matters most
A working data connection and translation tool prevent most confusion. Scanning unknown codes or approving a payment without checking the amount.
Payment, privacy and failed scans
A code may open a menu, mini-program, login request or payment screen. Read the next screen before tapping the final button. For payment, verify the merchant name and RMB amount. For login, never approve a device or account you do not recognize. If the page remains blank, switch from hotel Wi-Fi to mobile data, update the app, or ask staff for a printed alternative.
Take a screenshot of a successful ticket or payment result, but do not publish a screenshot containing a personal QR code. Some codes refresh and should not be reused later. If a payment appears to fail, check the transaction history before scanning again so you do not pay twice.
Useful Chinese prompts
- 这个二维码怎么用? — How do I use this QR code?
- 可以用支付宝吗? — Can I use Alipay?
- 付款成功了吗? — Did the payment succeed?
- 请给我纸质菜单。— Please give me a paper menu.
Related preparation
Use with mobile payment, eSIM and essential app guides.
Related Guides
QR code searches this page covers
QR code searches in China usually relate to restaurant ordering, Alipay and WeChat Pay, metro tickets, attraction tickets, hotel check-in, and mini programs. The practical rule is simple: a QR code often replaces the counter, so your phone battery, data connection, and payment setup matter more than they would in many other countries.
Disclosure: This post contains affiliate links. If you buy through them, we may earn a small commission at no extra cost to you. This never affects what we recommend or what you pay. We are not paid to publish positive reviews.
Get online in China the easy way
Do not rely on airport or hotel Wi-Fi. Install a China travel eSIM before you go so your phone just works — Airalo is the simplest app-led option most visitors use.