The solution to the conflict between the latter firm and the former trademark is: (1) the principle of protection preemption. In the case of conflicts between trademarks and trade names in the same field, the main principle of litigation is to protect preemption. That is, whoever registers first wins. (2) Resolving contradictions through litigation. The principle of handling is that if negotiation fails, conflicts and disputes will be resolved through litigation. If both parties think that the other party has infringed, they can bring a lawsuit to the court. According to the above principles, the court ruled that the losing party stopped using or infringing. (3) Change cancellation. The court decided to stop using it, but it can't be revoked, because it is the administrative function of the industrial and commercial registration department or the Trademark Office. According to the judgment of the court, an application may be filed with the relevant authorities to change or cancel the other party's trade name or trademark.