Thyroid thermal ablation operation method

The invention relates to the technical field of thyroid thermal ablation, and particularly provides a thyroid thermal ablation operation method which comprises the following steps that a thyroid nodule to be ablated is positioned, a thyroid ablation lesion is determined based on the thyroid nodule to be ablated, and the thyroid ablation lesion covers the thyroid nodule to be ablated; injecting spacer fluid into normal thyroid tissue between the to-be-ablated thyroid nodule and the posterior thyroid envelope by using a spacer fluid injection assembly, so that the minimum distance between the thyroid ablation lesion and the posterior thyroid envelope is greater than a preset first distance threshold; the thyroid ablation lesion is ablated through a movable ablation assembly, so that the thyroid thermal ablation operation is completed; the minimum distance between the thyroid ablation lesion and the recurrent laryngeal nerve can be increased, and therefore the situation that due to the fact that the distance bet