Abstract: [Purpose/Significance] This paper introduces the "Informatics Moments" into the scenario of family, dedicating to explore the mechanism of digital reverse mentoring, and providing suggestions for bridging the digital divide and promoting intergenerational interactions.[Design/Methodology] Twenty college students were recruited for interviews to examine the specific process of teaching their parents to use digital devices and the data analysis was conducted using the grounded theory. [Findings/Conclusion] The triggering mechanism, specific behavior and results of digital reverse mentoring are revealed. The difficulties and their solutions in the process are pointed out. [Originality/Value] This paper is no longer limited to explore the influencing factors, but deeply study the specific elements and their relationships of digital reverse mentoring, and constructs a model of digital reverse mentoring mechanism.

Keywords: Digital reverse mentoring, Digital divide, Informatics Moments, Grounded theory, Community informatics