An apparatus for integrating video and power transmission signals that comprises a front pane, a back panel, a power indicator, an unshielded twisted pair (UTP)-based video signal converting circuit, a power supply circuit, a UTP I/O terminal, a BNC coaxial cable-based video output terminal, and a power input terminal, said apparatus connecting to a plurality of video cameras, each having an independent UTP I/O terminal. Such cameras can transmit video and receive power signals through individual UTP cables, said apparatus receiving a first signal and filtering noises of said first signal to output a second signal via a BNC-coaxial-cable-based video output terminal to a digital video server, thereby integrating all monitoring and power transmission signals in said apparatus to effectively lower procurement costs and reduce the amount of space required for installation.