Ultrasound elastography is a new ultrasound diagnostic technique that can study imaging of tumors and diffuse diseases that cannot be detected by conventional ultrasound, and is currently applied to the breast, thyroid, prostate, liver, etc. The nature of the tumor is indirectly judged by the hardness of the tumor, for example, after applying an external force, the softer normal tissues are deformed and exceed the hard tumor tissues. Whether there is any change in the lesion before and after the pressure is applied, indicating the stiffness of the lesion, the latter is an important parameter to identify the nature of the lesion. Currently, it is widely used clinically to determine the nature of tumor together with ultrasound.