Abstract: The emerging of the big data technology brought revolutionary changes to the development of traditional industries. With the new information technology,community social service can be integrated with big data,which may boost its development. The idea of big data emphasizes analysis of data,correlation relationship and dynamic follow-up service in general. On the mode of service,big data focus on the initiative exploration of the data information,and preventive actions;on the principle, big data emphasize openness and sharing. All of the above show the advantage of big data in community social service. As for the steps of big data application in practice,the first is to build the data platform and to collect information;the second step is to analyze data information,and the last step is problem prevention based on the data information. The big data have an exclusive advantage,but there also exist multiple hidden perils such as information revealing,inertial dependence,information garbage and the lack of talents. Therefore,we need to put more emphasis on the perfection of relevant laws,to combine big data concept and conventional thinking and to make efforts to talents training in this area in order to solve possible problems.

Key words: big data, community, social service, information technology, data mining