Survival rate of thyroid cancer mainly depends on the pathological type and stage of thyroid cancer, the higher the malignant degree is, the lower the survival rate is. According to clinical statistics, the order of survival rate is papillary carcinoma, follicular adenocarcinoma, medullary carcinoma, undifferentiated carcinoma, and the earlier the stage is, the higher the survival rate is. Papillary carcinoma is the least malignant type with good prognosis and the highest survival rate; follicular adenocarcinoma grows faster and is easy to invade blood vessels, which is moderately malignant and has a lower survival rate than papillary carcinoma; Medullary carcinoma belongs to secretory cell tumors, early invasion of lymph nodes and hematogenous metastasis, with higher malignancy and lower survival rate than the previous two; undifferentiated is the most malignant type of thyroid cancer, with the lowest survival rate and poor prognosis, and the average survival time is only 3~6 months. The survival rate of thyroid cancer also depends on the tumor stage, according to the tumor diameter, infiltration range, lymph nodes and distant metastases, the smaller the tumor diameter, the smaller the infiltration range, the higher the survival rate of those without lymph nodes and distant metastases. Early surgical treatment can also effectively control the progression of thyroid cancer, thus improving the prognosis and survival rate. Therefore, once thyroid cancer is diagnosed, it should be treated early and actively so as to avoid the progression of the disease and the negative consequences.