The digital age has brought sweeping changes to China, and the creation of different types of online media has, to a certain extent, promoted the development of video art in China. However, the digital age is also a double-edged sword, and new technologies and the general online environment have brought enormous challenges to the development of video art. In order to promote the sustainable and stable development of video art in China, this paper examines the aesthetic and cultural characteristics of video art in mainland China in the digital age. After a brief analysis of the development of video art in mainland China and the aesthetic shift and aesthetic occurrence mechanism of video art in the digital age, the paper analyses the aesthetic characteristics of video art in mainland China in terms of interactivity, entertainment, realism and plasticity, and then analyses the cultural characteristics of video art in mainland China in terms of its sense of depthlessness, messiness, postmodernity and the subject of work creation.