Madrid international registration of trademarks is based on the provisions of the Madrid Agreement on the International Registration of Marks (hereinafter referred to as the "Madrid Agreement") or the Protocol Relevant to the Madrid Agreement on the International Registration of Marks (hereinafter referred to as the "Madrid Protocol"). Trademark registrations between member states of the Madrid Union. Compared with registering alone abroad, international trademark registration in Madrid has the advantages of wide coverage, convenient and fast procedures, and relatively low cost.

The "Madrid Union" refers to a special union for the international registration of trademarks composed of countries or intergovernmental organizations to which the "Madrid Agreement" and the "Madrid Protocol" apply. As of June 2018, the Madrid Alliance*** has 101 Parties, covering 117 countries. The world's major economies such as China, the United States, Germany, France, the United Kingdom, Italy, Japan, South Korea, Russia, Australia, and Switzerland are all members of the Madrid Alliance.