What will happen if you don't come back after traveling abroad? Is it illegal to travel abroad and not come back?

Answer the first question first: Yes, it is illegal to return to China if it is not due to force majeure or physical emergencies. Moreover, it violates the laws of the two countries, and the travel agency will also be severely punished.

The second question: if you don't come back, it is "illegal detention" in an easy-to-understand sentence. Law enforcement personnel of the country where the detention place is located have the right to arrest and repatriate. After returning home, I will be punished by the relevant domestic departments in accordance with relevant laws and regulations.

If we want to talk about it outside the legal level, that is to say, illegal residents will be afraid in the local area, can't have any illegal acts, and try not to contradict people, even if they are right. In addition, it will also bring unnecessary trouble to domestic families.