Abstract: Due to the limitation of video chronological expression,it is difficult for user to look through and retrieve video information.Based on the analysis of the video data characteristics,some design principles for video data visualization are proposed in this paper.According to the proposed design principles and video key frames obtained by clustering algorithm,a novel spiral circle structure video visualization method is given.Firstly,video shot segmentation and key-frame extraction based on frame dominant color are completed.Then,the video content is visualized into four layers,including spiral circle center,inner layer of clustering circle,middle layer of displaying circle and outer layer of diffusing circle.The spiral circle center displays basic video information,such as video name,resolution and frame rate.Representative key-frames are drawn on clustering circle in inner layer.The middle layer of displaying circle is used to shown representative sequences that are picked up from every video shot.Corresponding details of every video shot are described on the diffusion circle in outer layer.Finally,a video visualization and analysis system(WAS) is designed and developed according to proposed visualization method.Experimental results show that the proposed method can figure out the video content and the whole structure clearly and directly.It is very helpful for users to understand the video content quickly.