Someone sent me a text message calling me a liar and spreading rumors everywhere. What kind of legal procedure should I take to punish him?

Whether it belongs to libel depends on whether the circumstances are serious. The so-called serious circumstances mainly refer to the repeated fabrication of facts to slander others; Fabricating facts and causing serious damage to the personality and reputation of others; Fabricating facts to slander others, causing adverse effects; Defamation of others leads to the victim's mental disorder or suicide, and so on.

Defamation of reputation is a civil tort. First, you can call the police, and the police will impose fines and civil compensation on him according to law. Others can also bring a lawsuit directly to the court, demanding that the other party stop the infringement, restore its reputation and compensate for the mental loss.