Trademarks can be divided into 8 categories according to different standards and different angles. (1) Classified according to the structure of trademarks, they can be divided into word trademarks, graphic trademarks, and graphic and text combination trademarks. (2) Classification according to the purpose and function of trademarks can be divided into commodity trademarks and service trademarks. (3) According to the different owners and users of trademarks, they can be divided into manufacturing trademarks, sales trademarks and collective trademarks. (4) Classified according to the management of trademarks, they can generally be divided into registered trademarks and unregistered trademarks. (5) Classification according to the motivation of the trademark user for using the trademark can be divided into joint trademarks, defensive trademarks and certification trademarks. (6) Classification according to the meaning of trademarks can be divided into trademarks with meaning and trademarks without meaning. (7) Classification according to the way trademarks are used can be divided into main trademarks, sub-trademarks, product group trademarks and specific product trademarks. (8) According to the classification of trademark carriers, they can be divided into flat trademarks, three-dimensional trademarks, sound trademarks, smell trademarks, etc.