The invention relates to the field of video monitoring technology, and particularly to an intelligent integrated high-speed dome camera. The intelligent integrated high-speed dome camera comprises a video interface, a power supply interface, a master control unit, a video signal acquisition control module board, a data control interface and a management programming information button interface. The master control unit comprises a phase detecting device, a calculating unit and a focus adjusting mechanism. The phase detecting device is used for acquiring a focusing verification signal. The focusing verification signal is transmitted to a computing unit through an electronic converting circuit. The rotation direction and rotation amount of the lens are calculated according to the focal length and maximal aperture value parameter of a used lens. A focusing signal is transmitted to a focus adjusting mechanism for adjusting the focusing distance on the lens. According to the intelligent integrated high-speed dome camera, the focusing lens of an integrated machine can be quickly controlled through specific integrated high-speed dome quick focusing control technology, thereby performing a quick focusing function. Furthermore even in the rotation process of the dome camera, a clear image can be obtained, thereby better settling problems of focusing incapability and long focusing time in rotation process of the traditional dome camera.