Abstract: X-ray, CT, MRI, ultrasonography and scintigraphy are major imaging examining methods in the diagnosis thyroid carcinoma. X-CT:The malignant lesion can be low density with irregular shape and ill-defined margin. It is always used to define the scale of the tumor and the metastasis of lymph node. MRI:On T₁-weighted image the signal of malignant lesion is similar with normal thyroid, on T₂-weighted image the signal is high intensity. MRS is a feasible technique for the evaluation of malignant thyroid tumors. Uhrasonography:Thyroid carcinoma manifests as a hypoecho nodule with irregular contour, ill-defined margin, microcalcification, without halo. Invasion of adjacent tissue or lymph node metastasis are common. On color Doppler flow imaging intranodular blood flow is valuable. Scintigraphy:The commonly used drug are ¹³¹I, ²⁰¹T₁, ^99mTc-MIBI, ^99mTc(V)-DMSA, ¹¹¹In-octreotide. PET/CT seems to be helpful in the follow-up of thyroid carcinoma with suspected recurrence and (or) metastases. In this review, recent literatures were reviewed and acomparence was made. Then we found that every method had its advantage as well as its disadvantage, so clinic select proper methods according patient instance.