in China, the trademark law is a law and regulation to protect the rights and interests of trademarks. Trademark is an important symbol of enterprises in market competition, and it has independent intellectual property rights. Therefore, if two billiard halls collide with each other, it will involve trademark infringement.

Trademark infringement refers to the unauthorized use of another person's registered trademark, or the use of a trademark similar to another person's trademark, which may easily lead consumers to confuse and mistakenly think that the goods or services are related to other people's goods or services, thus infringing on the trademark rights and interests of others.

according to the provisions of the trademark law of China, the registrant of a trademark has the right to prohibit others from using the same or similar trademarks on the same kind of goods or services. Therefore, if two billiard halls collide with each other, it may constitute trademark infringement.

in case of trademark infringement, the injured party may bring a lawsuit to the court to demand that the infringement be stopped and compensate for the losses. At the same time, trademark infringement may also be punished by the administrative department according to law.