Scratching the face, if the circumstances are minor and there is no harm, is not an illegal crime, but if it is intentional injury, it may be a violation of public security management or a criminal offence. The nature of behavior should be determined according to the actual situation and relevant laws and regulations.

Relevant laws and regulations:

People's Republic of China (PRC) Public Security Administration Punishment Law

Article 43 Whoever beats another person or intentionally hurts his body shall be detained for not less than five days but not more than ten days, and shall be fined not less than 200 yuan but not more than 500 yuan; If the circumstances are minor, they shall be detained for not more than five days or fined not more than five hundred yuan.

Under any of the following circumstances, the offender shall be detained for more than 10 and less than 15, and fined for more than 500 yuan 1000 yuan:

(a) gang beating, hurting others;

(2) Beating or injuring a disabled person, a pregnant woman, a person under the age of 14 or a person over the age of 60;

(3) Beating or injuring others for many times or beating or injuring more than one person at a time.

Criminal law of the people's Republic of China

Article 234 Whoever intentionally harms another person's body shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or public surveillance.

Whoever commits the crime mentioned in the preceding paragraph and causes serious injuries shall be sentenced to fixed-term imprisonment of not less than three years but not more than ten years; Whoever causes death or serious disability by particularly cruel means shall be sentenced to fixed-term imprisonment of not less than 10 years, life imprisonment or death. Where there are other provisions in this Law, such provisions shall prevail.