Illumination control user interface and illumination control system

The invention provides an illumination control user interface and an illumination control system. A user can operate control modes and can adjust light characteristic of a light source seamlessly. The illumination control user interface is equipped with a control part (170), a first movable part (120) and a second movable part (130), wherein the control part (170) is used for controlling the light characteristic of the light source; the first movable part (120) can displace on multiple mode selection regions (110) which establish a corresponding relation with multiple control modes according to the operation of the user; the second movable part (130) can displace on the first movable part (120) according to the operation of the user; and the control part (170) establishes a corresponding control mode by selecting a mode selection region, which is overlapped with the first movable part (120), from the multiple mode selection regions (110), and controls the light characteristic corresponding to the selected con