Objective: to validate a Technological Rehabilitation Nursing Program for people undergoing total knee arthroplasty. Methods: this is a qualitative study, carried out through a focus group, with 12 nurses, considered experts in the area of rehabilitation. The program was developed using digital technology, such as an application for a mobile device. Experts assessed the program structure, the content made available to people undergoing total knee arthroplasty pre-operatively and post-operatively and the follow-up and communication strategies with nurses. Results: after content validity by experts, the final version of the program integrated three thematic areas and their respective categories: Rehabilitation program (Program phases, Program operationalization, Exercise plans included in the program); Useful information (Preparation for surgery, Care to be taken during surgery recovery); and Communication channel with nurses (Talk to a rehabilitation nurse, Self-assessment of health condition and Help with decision-making). Conclusion: experts’ contributions made it possible to achieve the content validity of the program and, consequently, improve patient literacy about the procedure, complication prevention and self-care; training patients to carry out exercise plans in the pre- and post-operative periods; and communication with nurses through application.