The vacuum-assisted breast tumor minimally invasive rotary mastectomy system is used to perform complete excision of breast masses through tiny puncture needle holes under real-time ultrasound localization guidance. The pathway obtains sufficient amount of tumor tissue specimens from the breast with high sensitivity and specificity, which provides a better method for early detection and diagnosis of breast cancer, and also allows minimally invasive excision of benign breast tumors. After removal of breast lumps, there is almost no scar on the outside, which can achieve the cosmetic effect that cannot be achieved by traditional surgery, and it is more suitable for young women because of the less damage to the internal breast ducts. Indications for minimally invasive breast surgery: 1. focal or suspicious microcalcifications visible on ultrasound; 2. complete excision of benign lesions such as breast fibroadenoma, breast cysts, etc. for therapeutic purposes instead of incisional biopsy; masses <=2.5 cm in diameter; 3. for severe hyperplastic lesions, both diagnostic and therapeutic purposes can be achieved; 4. mammography suggests or ultrasound shows distortion of breast structures to identify the nature of lesions; 5. Pre-operative diagnosis of highly suspicious breast malignancy; 6. Diagnosis before neoadjuvant chemotherapy or endocrine therapy (locally advanced breast cancer) and determination of efficacy after treatment; 7. Understanding the nature of multiple lesions in other parts of the breast before breast-conserving surgery; 8. Diagnosis and treatment of new lesions around the incision after breast-conserving surgery.