Introduce physicians with experience in repairing various advanced free flaps for postoperative defects in head and neck tumors, learn from foreign advanced free flap experience, and cultivate free flap repair and reconstruction physicians. Introduce doctors with rich experience in repairing various types of pedicle skin flaps after head and neck tumor surgery, learn from foreign countries' rich experience in pedicle skin flap repair, and cultivate rich doctors in pedicle skin flap repair and reconstruction. 3. Introduce repair and reconstruction physicians with experience in digital and navigation technology applications to learn advanced digital and navigation technologies from abroad, and cultivate and master digital and navigation technology repair and reconstruction physicians. 4. Introduce repair and reconstruction engineers with experience in digital and navigation technology applications to learn advanced digital and navigation technologies from abroad, Cultivating engineers who master digital and navigation technologies for repair and reconstruction of head and neck tumors and postoperative defects is the most important part of international repair and reconstruction, which is related to the patient's function and appearance, as well as social and psychological health. Head and neck tumors and postoperative defects repair and reconstruction are the most important part of international repair and reconstruction, which is related to the patient's function and appearance, and social and psychological health. With the transformation of the main contradiction between society and medicine in our country, patients' desire for a better postoperative life and the reality of medical technology have become the main contradiction. Therefore, it is imperative to carry out the repair and reconstruction of head and neck tumors and postoperative defects. However, the project involves otorhinolaryngology, oral and maxillofacial surgery, ophthalmology, neurosurgery, head and neck surgery, microsurgery, plastic surgery, etc., which requires multidisciplinary cooperation or specialized training personnel to achieve the desired results. In our hospital, this project is scattered among various relevant departments, lacking interdisciplinary cooperation and specialized training personnel, so the implementation is not ideal. In addition, digitization and navigation technology have brought head and neck repair and reconstruction into precision medical mode, but our hospital has not yet carried out it.