If there's one line I drum into every overseas friend before they get behind the wheel here, it's this: take China's drink-driving rules seriously, because they're enforced hard and the consequences are not worth risking over a pint. Back home you might have a rough sense of your own limit. In China, the thresholds are lower than many Western drivers expect, checks are routine, and a single evening can end your trip and hand you a criminal record. Let me, as an old hand who's seen good people get caught out, walk you through the numbers, the breathalyser, and exactly what happens if you're over the line.
1. The two legal thresholds: drinking and drunk
Chinese law splits alcohol-impaired driving into two distinct bands, measured by blood alcohol content, or BAC, in milligrams per 100 millilitres of blood. The first is "drinking and driving", which kicks in at 20 mg/100 ml and runs up to, but not including, 80 mg/100 ml. The second is "drunk driving", which is anything at or above 80 mg/100 ml. That top figure is the one that changes everything, because it crosses from a traffic offence into a criminal matter.
To put that in perspective, 80 mg/100 ml is roughly the limit used in England, but the lower band starts well before it. In practice you can reach 20 mg/100 ml after surprisingly little — a single beer or a glass of wine with lunch can do it depending on your size, food and how long it's been. My honest advice, the same I give mates: if you're driving at all, don't drink. There's no safe way to guess your own number, and the "one drink won't matter" mindset is precisely how people fail the test.
2. How the police test you: breathalyser and blood draw
At a checkpoint, an officer will ask you to blow into a breathalyser. These are common on city roads and motorways, especially around weekends and holidays, and they're not singling out foreigners — everyone gets waved through in turn. If the roadside reading suggests you're over the threshold, you'll be taken to give a blood test, which is the evidence used for the formal charge.
Co-operate calmly and politely. Arguing, refusing the test, or trying to drive off only makes matters worse, and refusal is treated as a serious offence in its own right. If you're pulled over by the police in this situation, it helps to know how the whole stop works, which I've covered separately so you understand your position and what the officers are checking.
3. Penalties for drinking and driving (20 to 80 mg/100 ml)
For the lower band, this is an administrative penalty rather than a criminal one. The standard consequences are having your driving licence suspended for six months and a fine of between 1,000 and 2,000 yuan, together with points on your record. Do it again and the response sharpens considerably — you can face detention, a heavier fine and a longer disqualification.
For a foreign driver on a temporary Chinese driving permit, that suspension effectively grounds you for the rest of a short trip, since the licence you're relying on is the one being taken away. It's a miserable way to end a holiday, and entirely avoidable.
4. Penalties for drunk driving (80 mg/100 ml and above)
This is where it gets genuinely serious. At or above 80 mg/100 ml, the case is treated as a criminal offence under the charge of dangerous driving. Your licence is revoked rather than merely suspended, and you can be banned from obtaining a new one for five years — ten years for commercial vehicles. Fines and possible detention follow, and the criminal record can cause trouble well beyond driving, from future visa applications to employment.
If drink-driving causes an accident, especially one with injuries, the penalties escalate steeply and can involve a custodial sentence. Being foreign offers no protection here; the law applies to everyone on Chinese roads, and the courts don't treat ignorance as a defence.
5. Practical ways to stay on the right side
The simplest rule is the oldest: separate drinking from driving completely. If a group meal involves beer or baijiu, plan a designated driver who sticks to tea, use a ride-hailing app, or take a taxi back and collect the car the next morning — Chinese cities have cheap, plentiful options at all hours. On a night out, leave the keys at the hotel rather than carrying them "just in case".
Remember that the morning after can still catch you. Alcohol leaves the body slowly, and a late night can leave you over the limit at breakfast time. Give it plenty of hours, and don't assume coffee or a cold shower sober you up — only time does.
6. How this fits with the rest of driving in China
The cars we help bring in run on a temporary licence plate valid for 3 months. Vehicle insurance is arranged before entry and paid at the actual cost. For the customs deposit, the owner only pays 10,000 yuan into a corporate account, arriving 3 days before entry, with the full amount refunded within 3 to 5 working days after the vehicle leaves the country. Every car is declared under the guarantee of a qualified travel agency such as our company, Yunnan Province International Travel Agency (Group) Co., Ltd. — individuals can't clear customs on their own, and the inspection fee of around 200 yuan applies to every vehicle.
All the ordinary traffic rules still apply alongside the alcohol laws, so keep to speed limits, wear your seatbelt and carry your documents. If you're hiring a car in China rather than bringing your own, the same strict standards apply to that rental, and the breathalyser thresholds don't change.
At the end of the day, this is the easiest rule on the road to follow and one of the harshest to break. Know the two figures — 20 and 80 mg/100 ml — understand that the higher one is a criminal matter, and make the boring choice not to drink when you're driving. Do that and you'll never have to worry about a checkpoint. If you'd like help arranging a self-drive trip, a rental, or the paperwork for bringing your own car over, just get in touch and I'll get you sorted.