The invention discloses an intelligent high definition video monitoring system, belonging to the video monitoring technical field, and comprises an intelligent tracking high definition video collection system, a high definition video processing system and a high definition video remote monitoring and processing system. The intelligent tracking high definition video collection system comprises a single-chip microcomputer, an upper computer, an encoder, a power supply circuit, a video collection terminal, a local network access device, a crystal oscillator circuit, a reset circuit, a memory, a display and a clock circuit. The high definition video processing system comprises a control system, a display screen, a decoder, a remote network access device, a local network access device, a storage system, a prompt system and an output system. The high definition video remote monitoring and processing system comprises a remote monitoring and processing system, a remote video storage system, a remote decoder, a remote network access device, a video player and an operating system. The intelligent high definition video monitoring system can automatic identify and track a motion object, automatically adjust an aperture, automatically focus, and perform remote monitoring.