Can you bring travel-size liquids to China?
A cautious guide to carry-on liquid limits, China domestic connections, duty-free transfers, checked-bag planning, and Customs checks.
Usually, a travel-size toiletry can be packed for a China trip, but airport security and Customs make separate decisions. For an international or regional flight, CAAC says each carry-on liquid container must be no more than 100 mL and all containers must fit in one resealable transparent bag of no more than 1 L. A larger bottle is not made compliant by being partly empty. Put items that exceed the carry-on rule in checked baggage only after confirming the operating airline's baggage and dangerous-goods rules; Customs can still inspect or require declaration for an item entering China.
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Separate airport screening from entry to China
A 100 mL carry-on container is an aviation-security limit, not a Customs clearance or a promise that every substance may enter China. China's current baggage rules require travelers to keep articles within reasonable personal use and to meet any prohibition, restriction, declaration, tax, or evidence requirement that applies. Treat a normal shampoo, lotion, contact-lens solution, or toothpaste as a packing question; treat medicines, disinfectants, alcohol, e-liquids, concentrated chemicals, or unusually large quantities as item-specific checks.
- Keep the original product label and ingredient information available, especially for unfamiliar products or anything that may be regulated as medicine or dangerous goods.
- Use the red declaration channel and ask Customs when the item's status, value, quantity, or required paperwork is unclear; a security-screening result does not answer that question.
- Do not rely on an empty-looking large bottle: CAAC's rule is based on the container's capacity, not how much is left inside.
Pack the international carry-on bag by container size
For international and regional flights, CAAC says carry-on liquids must be in individual containers of 100 mL or less. Put those containers in one transparent, resealable bag of up to 1 L; each traveler may take one such bag. Anything beyond that must be checked, subject to the airline's own conditions. Build this bag around what you need during the flight or immediately after landing, not around every toiletry for the full trip.
- Choose clearly marked travel-size containers; do not assume a 150 mL or 200 mL bottle is acceptable because it is partly used.
- Seal potentially leaky items inside an additional pouch before putting them in cabin or checked baggage.
- Recheck the operating carrier and each transit airport if a route has multiple airlines or countries; a stricter local or carrier rule can control that segment.
Plan separately for a China domestic connection
CAAC's domestic-flight guidance is stricter in wording: liquids are not generally carried onboard, apart from travel-use cosmetics, toothpaste, and shaving cream under its stated conditions. For cosmetics, each type is limited to one item in a container of 100 mL or less and may be opened for inspection; toothpaste and shaving cream are each limited to one item of no more than 100 g or mL. Pack the China domestic segment as its own security event rather than assuming an international-flight liquid bag will automatically pass unchanged.
- If a toiletry is not needed during the domestic flight, putting it in checked baggage before the domestic security checkpoint is the lower-risk option when permitted by the airline.
- Do not treat a cosmetic, medicine, disinfectant, e-liquid, or pressurized product as interchangeable; its composition can trigger separate carrier or safety rules.
- Ask the airline or airport security staff before discarding or repacking an uncertain item, especially when a short connection leaves little time.
Keep duty-free liquids sealed through the transfer
CAAC says duty-free liquids bought in an airport terminal or on an aircraft require special care during a China connection. Keep the receipt and the sealed, intact transparent bag, then present it for security confirmation. If you leave the airport's controlled area while transferring to a domestic flight, the guidance says the carry-on duty-free liquid must be checked as baggage. Do not open the sealed bag and assume it will still be accepted at the next checkpoint.
- Tell the shop about your transit point and final destination before purchase; the CAAC guidance specifically recommends checking the rules that apply along the route.
- Keep the receipt with the sealed bag until the final security decision is complete.
- For an overnight stop, self-transfer, or any itinerary that exits the controlled area, plan checked-baggage space instead of depending on the duty-free exception.
Use the medical and special-item exception carefully
CAAC says liquid dairy products necessary for an infant and liquid medicines necessary during the flight for passengers with diabetes or other illnesses may be carried after security confirmation. This is a need-during-travel and screening decision, not a general waiver for all large liquids or a replacement for medical documentation. Carry a prescription, clinician letter, or original label when it is available, allow time for inspection, and keep an independent checked-baggage or local-purchase backup.
- Bring only what is reasonably needed for the journey and keep it easy to identify at security.
- For prescription medicine, also use the detailed medicine guide to check active ingredients, personal-use quantity, and Customs questions.
- Do not put flammable, corrosive, high-alcohol, or other dangerous liquids into checked baggage simply to solve a carry-on limit; ask the operating airline first.
Before you rely on this answer
China travel rules and app behavior can change by city, route, account, passport, airline, and local inspection practice. Treat this page as a traveler-friendly starting point, then verify official or provider details before booking or packing anything important.
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Frequently asked questions
Can I carry a half-empty 200 mL shampoo bottle on a flight to China?
Do not count on it. For international or regional carry-on baggage, CAAC's limit is based on the container's capacity: each container must be no more than 100 mL, even if the bottle is partly empty. Put a larger permitted toiletry in checked baggage after confirming the airline's rules.
Does the 100 mL airport rule mean a liquid is allowed into China?
No. The 100 mL rule is for aviation security screening. China Customs separately applies reasonable-personal-use, declaration, and item-specific restriction rules. Ask Customs about an uncertain, regulated, high-value, or unusually large quantity rather than treating the screening result as entry approval.
Can I carry duty-free liquids onto a China domestic connection?
Only under the current transfer conditions. CAAC says inbound duty-free liquids need the receipt, an intact sealed transparent bag, and security confirmation. If you leave the airport controlled area during the transfer to a domestic flight, the guidance says the liquid must be checked as baggage.
Can I take liquid medicine through China airport security?
CAAC allows necessary liquid medicine for passengers with diabetes or other illnesses after security confirmation. Keep it identifiable, allow time for inspection, and carry medical documentation when available. This does not remove separate Customs, airline, or transit-country requirements.