If the driver drives semi trailer without a license, he shall be fined not less than 200 yuan but not more than 2000 yuan by the traffic control department of the public security organ, and may also be detained for not more than 15 days. According to the regulations, it is not allowed to drive a motor vehicle without obtaining a motor vehicle driving license, when the motor vehicle driving license is revoked, or when the motor vehicle driving license is temporarily detained.
[Legal Basis]
Article 99 of the Road Traffic Safety Law of the People's Republic of China stipulates that anyone who commits one of the following acts shall be fined not less than 200 yuan but not more than 2000 yuan by the traffic management department of the public security organ:
（1） Driving a motor vehicle without obtaining a motor vehicle driving license, or when the motor vehicle driving license is revoked, or when the motor vehicle driving license is temporarily detained;
（2） Giving a motor vehicle to a person who has not obtained a motor vehicle driver's license or whose motor vehicle driver's license has been revoked or suspended for driving;
（3） Escaping after causing a traffic accident, but not constituting a crime;
（4） A motor vehicle travelling at a speed exceeding 50 percent of the prescribed speed per hour.
The driver's license of a motor vehicle may also be revoked if the perpetrator is in any of the circumstances in sub paragraph (2) or (4) of the preceding paragraph; Under any of the circumstances set forth in Items 1, 3, 5 to 8, a person may also be detained for not more than 15 days.
