Abstract: The existing studies on user adoption behavior lack an in-depth analysis of the possible consequences of service features, which makes it impossible to grasp the current characteristics of elderly users’ adoption of intelligent elder care applications from a service-oriented value logic. Starting from the “service features”, this paper codes and analyzes the interview data through grounded theory to capture service atmosphere and establish an analytical framework. On this basis, the analysis of the survey data from the elderly in Shenzhen, Shanghai and Chengdu reveals that service atmosphere and satisfaction are the two variables that have the greatest direct effect on adoption intentions; Perceived risk has no significant relationship with adoption intentions; adoption intention has a significant positive impact on adoption behavior; and satisfaction partially mediates the effect between service atmosphere and adoption intentions. The study identifies and confirms the effectiveness of service factors at the micro level, expands the scope of the existing studies, and provides a new direction for future studies.