When ovarian cysts are found early in pregnancy, a five-item tumor test should be done first to assess the benignity or malignancy of the cysts. If it is malignant, the pregnancy should be promptly terminated and surgically treated. If the cyst is considered benign and the cyst is larger than five centimeters, cyst debridement can be considered after 14 weeks of pregnancy and sent for pathological examination, and postoperative treatment is given to settle the fetus. If the ovarian cyst is not operated during mid-trimester. As the uterus increases in size, surgery will become difficult and should be given for observation. If there are symptoms of abdominal pain and the ovarian cyst is considered to be twisted, ruptured or necrotic, timely surgery should be given. During labor, if the ovarian cyst blocks the descent of the fetus, vaginal delivery cannot be performed and a cesarean section is required.