In China, according to the relevant provisions of the Civil Procedure Law of the People's Republic of China, court summons should be stamped with the official seal of the court, and the date, address and mode of service of the summons should be indicated. The official seal of a summons is an important symbol to confirm its legal effect. If the summons is not stamped with the official seal, its legality may be questioned.

However, with the popularization of electronic litigation, some courts have begun to adopt electronic service, which may not require the seal of the entity. Electronically delivered documents, such as subpoenas sent by e-mail, short messages or the electronic delivery platform of the court, usually have corresponding electronic signatures or digital certificates to prove their authenticity and legitimacy. In this case, the service and receipt of the summons can be done electronically without the seal of the entity.