After the maritime and port organization system reform on March 1, 2012, in accordance with Article 2 of the Commercial Port Law, Taiwan International Ports Corporation (TIPC) operates and manages an international commercial port. However, the management matters involving public power were handled by the Maritime and Port Bureau (MPB) of the Ministry of Transportation and Communications (MOTC). Before the maritime and port organization system reform, the Port Authority was also an administrative organ that exercised public power, it had certain coercive and binding power on the management of the related parties in the port area; nevertheless, after the reform, the legal relationship with related parties has changed because TIPC has become a private legal person in law. After that, this also affects the legal relationship between TIPC port management and the Fair Trade Act. As stated above, this article will explore and make some suggestions.