The success of a trademark is mainly related to the examiner's subjective judgment. Trademark review is not a machine review, but a manual analysis and judgment of trademark examiners. Although trademark examiners have roughly the same judgment on the approximation, distinctiveness and prohibitive clauses of a trademark, there are still some subtle differences. It may be due to different levels of knowledge and different understandings of approximate judgment of trademark law. , leading to different judgment results, the examiner's subjective judgment error may lead to the rejection of the trademark.