
Driver's license number is the ID card number. According to regulations, one ID card can only apply for one driver's license, so the driver's license number is the same as the ID card number, which is unique. In addition, there is a file number on the auxiliary certificate of the driver's license, which is the number assigned by the vehicle office that issued the driver's license to the driver's license file. From this, it can also be seen which vehicle management office issued the driver's license. The full name of the driver's license is the motor vehicle driver's license, also known as the 'driving license'. It is the certificate that motor vehicle drivers need to apply for according to the law. Driving a motor vehicle requires certain driving skills. If you lack this skill and drive a motor vehicle at will, traffic accidents may occur. Generally, people without a license are not allowed to drive on the road.

I just completed my driver's license annual review a couple of days ago, and I can clearly tell you that the driver's license number and ID number are completely different things. I remember at the DMV counter, the staff specifically reminded me: the driver's license number is the file number, usually the 12-digit number on the back page of the license. For example, my driver's file number '340103198902030012' has an additional check digit compared to my ID number. But these two numbers are strongly correlated—many places can look up driver's license information using just the ID number, especially now with the Traffic 12123 App, where facial recognition login ties all license statuses to your ID. If you lose your license, don’t panic; just bring your ID card to get a replacement.

Last year, I specifically researched this when accompanying my cousin for his driver's license test. If you flip through your driver's license, you'll notice that the main page is the identity information page, which uses the ID card number; the auxiliary page's file number is the actual driver's license number, typically a 12-digit combination. These two numbers are like the relationship between a license plate number and a VIN—one is for external use, and the other is for internal use. When traffic police check your vehicle, they can retrieve your driver's license file number by scanning your ID card, and this unique number is also used for handling violations. When replacing a lost license, the DMV requires you to bring your original ID card, indicating that the two systems are linked. By the way, a quick reminder: nowadays, car rental apps require you to upload a scan of the auxiliary page when binding your driver's license—they need to record the file number.

I just renewed my driver's license. The main information page now displays a number identical to your ID card, but the actual driver's license number is the 12-digit file number on the secondary page. A friend at the DMV explained the numbering system to me: the first six digits are the administrative division code, the middle section matches your ID card's birthdate, and the last three digits are a special sequence code. For example, when old 'Jing A' licenses were replaced with new ones, the file number became linked to the ID number. Currently, handling non-on-site traffic violations requires entering this file number, but binding with the traffic app makes checking points more convenient.

When my driver's license supplemental page was worn out, I inquired at the traffic police station. The driver's license file number is the actual code recognized by the vehicle system, located in the small digits above the barcode on the supplemental page. Although the new generation of licenses now prints the ID number on the main page, the system still calls up the 12-digit file number on the supplemental page when issuing tickets or conducting annual reviews. In practice, I've encountered situations where new drivers mistakenly filled in their ID number as the driver's license number on electronic traffic violation appeal forms, resulting in the system being unable to retrieve any records. When renting shared cars, using the wrong number can also cause the authentication to get stuck at the final step.

I remember the examiner emphasized this point during the driving test. Checking the driver's license: the page with the ID number printed on it is the main identity page, while the bold string of numbers at the top of the supplementary page is your unique driver's license file number. This setup is quite scientific: it confirms the driver's real identity while providing a separate code for the traffic control system. Last year, when handling a rear-end collision on the highway, the traffic officer asked for my file number, and I instinctively recited my ID number, which delayed the process by several minutes. Nowadays, car rental apps require a close-up of the supplementary page when binding a driver's license, as their core requirement is to collect this 12-digit file number.


