The invention discloses a trembling function image imaging method based on a video. The imaging method consists of a video collection module, a signal preprocessing module, a signal analysis module, a trembling function image generation module. After the video of an object is collected, an original video is subjected to preprocessing including denoising, interframe smoothness, super-resolution and the like; the preprocessed video is subjected to movement amplification and trembling trajectory analysis; and finally, a trembling function image, a trembling frequency image and a trembling angle image are obtained. By use of the method, subpixel-level microvibration in the video can be analyzed, and visualization is carried out.