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In the dynamic experiment, accurate measurement of the dynamic displacement response of the experimental model is the key to ensure the quality of the experiment. The traditional method of obtaining the displacement response has some defects, such as unable to measure the whole field, poor dynamic measurement effect and so on. In view of these defects, a non-contact optical dynamic displacement measurement method based on three-dimensional digital image correlation is proposed, and a non-contact optical measurement platform based on three-dimensional digital image correlation is built. Through ground experiments, the measured results are compared with the real displacement, and its application range and accuracy are verified. The experimental results show that the measurement accuracy is reliable when the image plane is in translational or vertical motion; When rotating around the horizontal axis of the image plane, the angle should be less than 20 as far as possible .The experimental results provide an effective reference for the measurement technology based on 3D digital image correlation method.