First of all, you need to know what trademark similarity is. 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 certain differences, the overall difference is not significant. Use of the same or similar goods or services may easily confuse the relevant public as to the source of the goods or services. The similarity of word trademarks should mainly consider the three aspects of form, pronunciation and meaning. For graphic trademarks, composition, appearance and coloring should be mainly considered. For combination trademarks, both the overall form of expression and the distinctive part should be considered. The determination of trademark similarity should be based on the shape, sound, meaning and overall expression of the trademark itself, based on the general attention of the relevant public, and a combination of isolated comparison, overall comparison and comparison of essential parts to determine whether the trademark is similar. Whether the logo itself is the same or similar. Isolated comparison means that when determining whether trademarks are similar, the trademarks cannot be placed side by side for comparison, but can only be compared separately in an isolated state. However, when reviewing trademarks, the comparison can only be direct and non-isolated. Therefore, during the review, the isolated observation should simulate the scene of consumers purchasing goods and services as much as possible. Overall comparison means that two trademarks should be compared as a whole, and parts cannot be used to replace the overall judgment. Comparison of essential parts refers to the comparison of the prominently identifiable parts of the trademark. The general attention of the relevant public can be understood as the attention exerted on the goods or services by consumers with ordinary knowledge and experience when purchasing goods or receiving services.