The so-called “Green Surgery” is a non-toxic, non-side-effective, and minimally stimulating method of perioperative and inpatient treatment that is used throughout the entire hospitalization period from admission to discharge of the surgical patient. “Green Surgery” in the diagnosis of admission to the hospital not only to consider the disease of anorectal specialties, at the same time to consider the pregnant woman’s pregnancy, the combination of the two to consider the condition, the design of the operation. The principle is “try not to operate if it can be done without surgery, and do not do it if it can be done in a small way”; by strengthening acupuncture anesthesia, the micro-infiltration anesthesia achieves good anesthesia effect; by identifying the signs causing the symptoms to reduce the scope of the operation, and focusing on the treatment of incision and flap to reduce the postoperative pain; the use of herbal decoctions for wound wet bondage, local oxygen therapy, acupuncture and other methods for post-surgical anti-infection. The method of postoperative anti-infection and pain relief treatment. Throughout the hospitalization period, pregnant women undergoing surgical treatment for anorectal diseases are not exposed to chemicals and other injurious stimuli that may have an impact on the mother and fetus, and are able to effectively solve the pain of anorectal diseases in pregnant women. A 28-year-old patient who was 8 months pregnant with prolapsed mixed hemorrhoids with atony, told us after this “green surgery”: “My surgery ended in a relaxed mood, and all the postoperative medicines used were Chinese herbs, no chemicals were used, and there was almost no pain. I am most satisfied that this kind of green surgery has no effect on the baby in my body.” This concept of “green surgery” is suitable for pregnant women and will be accepted by a wider group of doctors and patients in the future.