The metasurfaces can be regarded as a two-dimensional metamaterial, which can control the light field distribution in the surface domain. The research of active metasurfaces as the new design requirements has become the hot research field. Therefore, the precise modulations of the phase, polarization, intensity and other dimensions of the light field by using the active metasurfaces, as well as the modulations of the interactions between the light field and matters, are the frontier research of the integrated development of basic physics and multi-disciplinary science. In this paper, we systematically introduce the latest research progress in the multi-dimensional modulations and applications of light field such as structural color, polarization conversion, perfect absorption and image processing. Finally, some research frontiers and potential applications of active metasurface are prospected.