The principle of catgut embedding at acupoints to lose weight is to select acupoints reasonably and effectively according to the individual differences, different symptoms and different obesity mechanisms of patients, and to embed the magnetic thread of catgut protein at the corresponding acupoints (replacing acupuncture with thread), so as to achieve the functions of "invigorating spleen and benefiting qi, dredging meridians, and harmonizing Yin and Yang Qi qi and blood", thus regulating the autonomic nerves and endocrine of patients.