Recently, mobile devices penetrate people’s everyday life and become personalized necessaries of human’s life. Therefore, people, today, always carry mobile device anytime and anywhere. Given the current lifestyle, the present paper believes that mobile device evolves to personal life recorder for caching everyday life. The LifeDiary TM creates daily activity automatically in a time line and allow to share thier memories through online. In addition, p.c. client encourages users to generate their contents simply given simple template. Mobile LifeDiary TM encourages users to create, synchronize, and share their everyday life.