With the gradual popularization of high-resolution ultrasound, the wide application of fine-needle aspiration biopsy technology under ultrasound guidance, and the rapid development of molecular marker detection technology, the detection rate of papillary thyroid microcarcinoma (PTMC) has increased year by year.The main clinical treatment method for PTMC is surgery or active surveillance. In recent years, with the good application of thermal ablation technology in the treatment of liver cancer, benign thyroid nodules and other tumors, many scholars at home and abroad advocate applying this technology in the treatment of PTMC.However, there is still a lack of multicenter, prospective long-term studies with large sample size to confirm the safety and effectiveness.Therefore, it is highly controversial whether thermal ablation should be applied to the initial treatment of PTMC.This paper will comment on this hot issue.