Consular authentication is an activity for the promotion and confirmation of documents by diplomatic or consular institutions in the name of the state. The diplomatic and consular agency or its authorized agency confirm the seal and signature of the legal issuing agency on the certification document that needs to be used in another country. The purpose is to enable the certification documents to be recognized by the relevant agencies of other countries and produce extraterritorial legal effects.

Citizens travel abroad, visit relatives, study abroad, work, marriage, residence and emigration; involving overseas property relations change, judicial proceedings, adoption and other activities; In foreign trade, overseas investment, cooperation, sales, service and other activities, enterprises and institutions (including applying for a visa to go abroad) will be required to apply for consular authentication when they need to provide supporting documents to foreign institutions.