Consecutive patients undergoing oral cancer treatment at the hospital were enrolled and randomly assigned to either a control group or an experimental group using a random number table. The control group received standard postoperative rehabilitation, including instructional manuals and exercise videos, to ensure proper rehabilitation training and precautions after discharge. Rehabilitation physicians assessed outcomes and provided guidance during follow-up visits. The experimental group adopted the "Internet +" remote rehabilitation model. Patients were instructed to download a rehabilitation follow-up app, which provided daily exercise reminders. Patients logged their completed exercises and periodically recorded rehabilitation videos. Rehabilitation physicians remotely evaluated and guided patients based on the submitted videos. Shoulder and neck function were assessed using the Constant-Murley Shoulder Score and Neck Dissection Impairment Index (NDII) at preoperative, 10-day, 1-month, and 3-month postoperative intervals.