The present invention relates to a system and method for establishing a societal emotional network, and a method for establishing a societal emotional network using a societal emotional network construction system including a sensing device, a user terminal, and a logging server, Acquiring sensed data including at least one of an acceleration value according to motion, a shot image, and a surrounding sound, and acquiring personal sensibility data from the real time location information of the user and the web use information of the user Analyzing the sensed data and the personal emotional data to generate the societal emotional data of the user by using the sensed data and the real sensed position information, Calculating, Wherein the logging server forms a group to which users belong by using the synchronization value and a predetermined threshold value, the logging server assigning a social ID to users belonging to the group, The terminal receives the information analysis command for the group from the users using the social ID, and the logging server analyzes the information about the group according to the information analysis command and transmits the analysis result to the user terminal .As described above, according to the present invention, it is possible to extract and utilize information on popular emotion, that is, consumption tendency, political propensity, and area of interest based on the social sensibility network. In other words, individuals can expand and indirectly experience memories through extracted mass emotion, and can be used as data for establishing services or policies for corporations or governments.In addition, considering that life logging is a technology that records the life of an individual in detail, the privacy of an individual is safely protected by thoroughly ensuring the anonymity of the individual by using the social ID and the social network ID.본 발명은 사회감성 네트워크 구축 시스템 및 그 방법에 관한 것으로, 센싱 디바이스, 사용자 단말기, 로깅 서버를 포함하는 사회감성 네트워크 구축 시스
