Different from the scattered arrangement of measuring points in the traditional bridge deformation measurement method, the holographic deformation behavior of the bridge can effectively analyze its structural changes. In this paper, the phase-based Euler image enlargement algorithm is used to combine the video image non-contact measurement method to obtain the deformation shape parameters of the bridge as a whole, and the acquisition and amplification of the bridge holographic deformation is realized. This method is different from the digital image correlation method (DIC). The Euler amplification algorithm is based on band-pass filtering and extracts the periodic vibration signal in the corresponding bandpass range for amplification. Such a treatment is suitable for a deformation characteristic of a bridge structure having periodic vibration. In this study, a high-speed civilian camera is used to take fixed-point shooting of the laboratory large-span self-anchored suspension bridge scale model to obtain digital image information, and then the phase-based Euler image amplification algorithm is used to visualize the small vibration shape, and finally use the reduced edge. The operator realizes the extraction of the edge of the bridge structure. At the same time, the traditional dynamic displacement measurement method is used to obtain the same shape deformation data. The feasibility of the method is verified by the comparative analysis results, which provides a new method for the future acquisition of holographic morphology by means of imaging. Keywords: Holographic deformation Eulerian Magnification Edge detection algorithm Non-contact measurement