Is it illegal to send text messages to swear?

Legal analysis: it is immoral, but not to the extent of breaking the law. There is no law against swearing. Our country's law stipulates that there is no explicit stipulation that it does not constitute a crime, so it is impossible to pursue the other party's responsibility.

Legal basis: Article 13 of the Criminal Law of People's Republic of China (PRC) stipulates that all acts that endanger the sovereignty, territorial integrity and security of the country, split the country, subvert the people's democratic dictatorship and the socialist system, disrupt the social and economic order, infringe on state-owned property or property collectively owned by working people, infringe on citizens' private property, infringe on citizens' personal rights, democratic rights and other rights, and other acts that endanger society shall be punished according to law.