The invention provides a city life information platform and implementation method, capable of providing the socialized services form the city life main body based on a common server soft hardware system and a website platform system of website basis structure. A system node at least is divided into the personal node and commerce node and the content of the commerce node can be edited by any customers before being taken over. The system also comprises a group device, a show device, a comment device, an instant communication device, an accounting device, a monitoring device and a pushing device, and is combined with a series of method of aggregating the content, automatic grouping, tracing and commenting, affirming the information and instantly communicating or the like, therefore the nodes and the contents are integrated into one real-time effective information entity. The information platform can fully satisfy the subjective requirement for developing various city social activities of the city subjective, especially have very effective application of customer relationship management, accurate marketing of network, society aggregation or the like.