Laparoscopy is an important examination and treatment method in modern medicine, and it plays an important role in various diseases that cannot be clearly diagnosed. Laparoscopy is a technique to examine the situation in the pelvic and abdominal cavities with an endoscope and perform surgery by speaking carbon dioxide gas into the abdominal cavity. The wide application of laparoscopy can clearly see the appearance, location and size of the uterus, bilateral ovaries and fallopian tubes, and examine the pelvic adhesions, so laparoscopy is applicable to many conditions. 1.Ectopic pregnancy. Laparoscopy, as the most important diagnostic tool for ectopic pregnancy, can detect and treat it timely and effectively. Laparoscopy is useful for patients with atypical symptoms of early ectopic pregnancy that are difficult to diagnose, so as not to delay the disease. It identifies the basis for conservative treatment. 2.Fallopian tube obstruction. Tubal obstruction is a common cause of female infertility, and the most intuitive and accurate judgment on the patency of the fallopian tubes and pelvic adhesions is made through laparoscopic examination to assess the causes of tubal infertility. 3. Endometriosis. Laparoscopy has an important role in the diagnosis of endometriosis, and in restoring the correct anatomical structure of the pelvis, removing pelvic lesions and restoring the pelvic environment, biopsy of suspicious lesions and staging through surgery. 4.Unexplained abdominal pain, pelvic pain, etc. can be examined visually. Laparoscopy, as a surgical method in the 21st century, greatly reduces the recovery time of patients from surgery and has been widely used in gynecological clinical treatment for various gynecological diseases, with good diagnosis and treatment.