Fibroadenoma of the breast is a benign tumor commonly suffered by young women. Since the tumor has a certain malignant rate and there is no effective treatment drug, it should be surgically removed as early as possible. For tumor surgery, the most important requirement is tumor-free surgery, which is to remove the tumor completely without cutting through the tumor, and not to have tumor residue. If the surgery is not done properly it will cause more damage to the gland, or leave obvious surgical scars on the breast skin, or the tumor cannot be removed completely. It is not easy for young women, especially unmarried women, to have surgical scars on the breast skin. In order to remove the tumor completely and make the breast incision beautiful and not easy to see, we have researched and developed the minimally invasive cosmetic excision method for benign breast tumors. The surgery selects a curved incision next to the areola, separates and removes the tumor completely along the gap between subcutaneous fat and breast gland, and the postoperative incision is closed by cosmetic method, and the surgical wound scar is basically invisible after stitch removal. This surgical method not only conforms to the principle of tumor-free surgery, but also does not damage the glandular tissues, with minimal bleeding and no stitching scars, achieving the best aesthetic effect.