Thyroid cancer is the most common malignant tumor in the endocrine system in recent years, which relies on the development and popularization of ultrasound. At present, ultrasound has been widely used in the diagnosis of thyroid disease, and new technologies are developed rapidly, the two-dimensional ultrasound, contrast-enhanced ultrasound, ultrasound elastography and ultrasound guided biopsy in diagnosis of thyroid carcinoma were reviewed research.