Ultrasound elastography is an emerging ultrasound technology based on different elastic characteristics inside organizations.By providing elastic characteristics inside organizations,it can reflect the softness and hardness of the pathological tissues,thus determining whether the neoplasm is benign or malignant.Elastography compensates for the tissue biomechanics in conventional imaging examinations and plays an increasingly important role in ultrasound testing,so it is gradually applied in clinic.This paper summarizes the application of ultrasound elastography in the differential diagnosis of breast neoplasm in recent years.