According to the provisions of the "Trademark Examination Guidelines", trademark similarity refers to the pronunciation, vision, meaning or arrangement order of trademark components such as words, graphics, letters, numbers, three-dimensional logos, color combinations and sounds. Although there are some differences in other aspects, the overall difference is not big. The approximation of word trademarks should mainly consider the three aspects of "shape, sound and meaning"; the graphic trademarks should mainly consider the composition, appearance and coloring; the combination trademarks should consider not only the overall form of expression, but also the distinctive parts.

The criteria for determining the similarity of trademarks are as follows:

(1) The degree to which the trademark can attract public attention is the standard;

(2) The need for Compare the trademark as a whole, and compare the main parts of the trademark at the same time (the comparison needs to be done separately when two or more trademarks are isolated);

(3) The distinctiveness and popularity of the registered trademark need to be considered as appropriate ;

(4) The scope of products and services protected by the registered trademark.