The embodiments of the present invention provide a plug and a power connector. The plug is applied in a power connector connected between a power supply device and a radio frequency module. The plug includes a jack and a crimping component set at a tail end of the jack, and the crimping component is configured to connect a power cable introduced from the power supply device to the jack in a manner of fixing. A power connector that includes the plug is further provided. By using the technical solutions according to the embodiments, easy on-site installation of the power connector that includes the plug during use may be ensured.