Trademarks are divided into 45 major categories. The first 1-34 categories are commodity categories, and the last 35-45 categories are service categories. There are group classification details below the major categories, which are commonly referred to as small categories. Sub-categories include many specific goods or services. Before registering a trademark, first determine the broad category it belongs to. Therefore, trademark registration is divided into broad categories.

In the trademark "Services and Goods Classification Table", 45 major categories include: category titles, notes, and names of goods or services. The category title indicates the scope of goods or services included in this category; the annotation explains which goods or services are mainly included and excluded in this category.

The principle of registration of domestic trademarks in China is that a trademark registered in a class is counted as one trademark, and one application form must be submitted, that is, one form per class. If a trademark is registered in two categories, it means two trademarks, and two registration applications must be submitted, and so on. A trademark can select 10 products in a category. If there are more than 10 products, for each additional product, the Trademark Office will charge an additional item fee.

Trademark registration classification inquiry is something that must be done before registering a trademark. The correct trademark registration category is one of the first conditions for successful trademark registration. Trademark registration classification inquiry. During the inquiry process, in addition to determining the registration category based on the goods or services operated, it is also necessary to check whether there are identical or similar trademarks under the category to avoid trademark duplication and rejection.