Because social transition usually makes society conflicts multiple and the development of network technology is rapidly，the net group conflicts come into more frequent time. It is an unavoidable problem to actively avoid and deal with the net group conflicts for social governance. Based on summarizing the causes，characteristics and laws of evolution of net group conflicts in social transition period，this paper proposes the governance principles of net group conflicts during social transformation，including the rule of law，comprehensive，openness and introductory. At the same time，combining with the typical cases in 2014，the paper builds the governance mechanisms and puts forward the path of net group conflicts during social transformation.