100毫升规则是什么？

每个容器容量不得超过100毫升或100克；限制看容器大小而非装了多少。所有容器放进同一个1升透明袋。

可以带免税液体吗？

可以，只要装在带收据的STEB密封袋中。在抵达最终目的地前不要拆封。

豁免。处方药、婴儿食品等必需液体可超量携带，但需带处方或医生证明并主动申报。

因为规则看容器容量（上限100毫升）而非剩余量，瓶子偏大即使没装满也不行。

多数机场采用 ICAO 标准：液体、凝胶与气溶胶容器不超过 100 毫升/100 克，全部装在一个透明可重封的 1 升袋内。免税品可放入 STEB 密封袋，药品、婴儿食品等必需液体可豁免。

更新日期: 2026-09-10

地区 / 国家	容器上限	包装要求	备注
International (ICAO)	100 ml / 100 g per container	1 L clear resealable bag	Baseline for most airports; screen separately
United States (TSA)	3.4 oz / 100 ml per container	1 quart clear bag, 1 per passenger	3-1-1 rule; over 100 ml only if declared
European Union	100 ml per container	1 L transparent resealable bag	One bag per passenger; UK same since 2023
United Kingdom	100 ml per container	1 L transparent bag	New CT scanners may allow over 100 ml at some airports
Canada (CATSA)	100 ml per container	1 L clear resealable bag	Same as international; one bag per passenger
Australia	100 ml per container	1 L clear plastic bag	One bag per passenger; screened separately
Japan	100 ml per container	1 L clear bag (recommended)	Follows international; separate tray at security
South Korea	100 ml per container	1 L transparent bag	One bag per passenger at Incheon and domestic
China	100 ml per container	1 L clear bag	Domestic flights follow the same 100 ml rule
Singapore	100 ml per container	1 L clear bag	Changi follows the international standard
UAE	100 ml per container	1 L clear bag	Dubai and Abu Dhabi follow ICAO; sealed duty-free OK
India	100 ml per container	1 L clear bag	One bag per passenger; liquids screened separately