One of the ways to construct social memory was that every single person traces history. In modern years, we used new media, media tools to integrate the historical resources and contemporary information. Blogs, forums, main stream of media sites were the typical represent, the way to gather people, memory and emotion. The progress that social memory and personal memory constructed each other showed they depend on each other. Social memory had to be constructed by personal memory. However; personal memory attached social memory, so personal memory that relied on social memory was extremely important to be. Society was constructed by personal memory, and the way was called "construction-deconstruction-reconstruction".