Under the background of my country’s “9073” pension model, for the elderly who are recovering at home to more actively and effectively carry out hand function rehabilitation training; based on the self-efficacy theory, this paper discusses its application in the design of hand rehabilitation training instruments for the elderly. Apply, analyze and study the self-efficacy of elderly hand rehabilitation patients, and build a user model based on this, and finally produce corresponding solutions and complete product design and implementation, stimulate and enhance their self-driven potential and self-efficacy value, and provide the elderly with a sense of self-efficacy. The product design of human hand rehabilitation aids provides an innovative idea.