Legal analysis: You can do a lot of things, even get a loan, so be careful. You must not give your ID card and copy to anyone casually, let alone sign it.

Legal basis: Article 17 of the Law of the People's Republic of China on Resident Identity Cards commits one of the following acts, and the public security organ shall impose a fine of more than 200 yuan but less than 1,000 yuan, or detain it for less than 10 days. Illegal income, confiscate the illegal income:

(a) using another person's identity card or using a forged identity card;

(2) buying, selling or using forged or altered identity cards.

Forged or altered identity cards and fraudulent identity cards shall be confiscated by public security organs.