Body cavity thermal perfusion treatment technology has emerged in front of people’s eyes, and has proved its efficacy with facts. Today, we will mainly talk about the principle of the existence of body cavity thermal perfusion. Let more people know about this technology. The principle of the existence of this new technology of body cavity thermal perfusion is an important means to effectively reduce the metastasis of tumor patients after surgery, using the sensitivity of tumor cells to temperature, so that they can apoptosis under a specific temperature, while normal tissues are not damaged, so as to achieve good clinical efficacy. This is the principle of the existence of body cavity thermal perfusion, which seems to be very simple, but the efficacy is very considerable. This is the so-called using the simplest principle to cast the greatest success, and the application of this technology in clinical practice is indeed successful, it is very effective in treating and controlling cancer cells, thus effectively killing cancer cells and relieving patients of their pain.