Minimally invasive techniques are the trend in surgery today. Endoscopes have been widely used in the surgery of ophthalmology and abdominal organs, however, the application of endoscopes in orbital surgery is mainly performed by the ophthalmologist through the sinus approach.Since 2005, our department has been the first one to carry out endoscopic minimally invasive orbital surgery for the treatment of orbital diseases in ophthalmology in China. After clinical exploration, the applications are: 1. Orbital decompression: (1) Cosmetic decompression for thyroid-related ophthalmopathy and orbital apical decompression for the treatment of compressed optic nerves, the latter of which we were the first to carry out in China. (2) Orbital subperiosteal abscess. 2.Fracture repair (inner wall, lower wall): The traditional incisions for orbital fracture repair mainly include the lower eyelid skin incision approach and the transconjunctival approach, the transconjunctival approach will leave unsightly scars on the surface of the skin, so we innovatively improved the surgical technique by the transconjunctival approach through the lacrimal caruncle or the inferior fornix, which greatly reduces the surgical trauma. 3.Lacrimal Tract Diseases: ①Jones Lacrimal Duct Implantation; ②Internal Lacrimal Cyst Nasal Anastomosis (DCR): DCR via nasal endoscopy has obvious advantages over traditional DCR: good intraoperative visualization, short operation time, less bleeding, less tissue damage, no postoperative scar formation of the facial skin incision, which was firstly carried out in Southwest China, and we took the lead to make further improvements of minimally invasive with small incision in the country. 4.Optic nerve decompression surgery, technical improvement exploration, and combined with the local treatment of nutritive nerve. 5.Orbital tumors: with the help of endoscopic technology through the sieve sinus approach and blepharoplasty approach, treatment of cavernous hemangioma in the orbital tip, orbital top tumors, such as eosinophilic granuloma and orbital dermatoid cysts as well as Langerhans cellular hyperplasia. 6, Orbital foreign body, etc. In the past 3 years, 698 cases have been completed, which is one of the units with the highest number of cases carried out in China. The above work has been presented 4 times at national conferences, 1 special lecture, and 2 continuing education lectures. The technology has been promoted through 1 study class. It has been popularized and applied in more than 30 hospitals in China, reducing surgical trauma, improving cure rate and reducing complication rate.