The best time for cervical conization surgery is 3 to 7 days after menstruation, but there may be individual differences. Cervical conization surgery is a supplementary diagnostic tool when the diagnosis of cervical biopsy is insufficient or doubtful, and it is also a therapeutic tool for the diagnosis of cervical lesions, which needs to be operated by professional doctors. Preoperative contraindications such as acute inflammation of the reproductive tract should be excluded, and it is recommended that the procedure be performed 3-7 days after menstruation. Before the operation, it is necessary to improve the blood routine, coagulation function, indicators of infectious diseases and electrocardiogram and other related auxiliary examinations. After cervical conization surgery, we should pay attention to appropriate rest, not be able to carry out strenuous exercise and heavy labor, keep the vulva clean and dry, observe the vaginal bleeding, follow the doctor’s instructions to give metronidazole and other antibiotics to prevent infection, prohibit potty baths and sexual intercourse for 2 months, and timely tracking of pathology results. Those who have recovered well need to be rechecked 6 weeks after the operation.