内容摘要：通过对奇虎360与腾讯QQ之争的研究，从不正当竞争与垄断方面，对双方利益之争中的违法违规事项进行分析，发现其中奇虎360涉嫌商业诋毁行为，而腾讯方面涉嫌滥用市场支配地位，进一步认识到中国网络市场的动荡与混乱，看到网络企业对用户利益的漠视与损害，启发出不管是从立法的完善，还是从监督的加强以及执法的完善的思考。同时，对建立健全相应的法律体系，加强执法，有效引导，在科学合理的前提下做好事前防范、事中监督和事后处理，培育良性的市场竞争意识给与一定的建议与指引。

关键词：腾讯QQ  奇虎360  网络服务市场  不正当竞争  垄断

Abstract: Through the research on the war between Qihoo360 and Tencent QQ, we found Qihoo360 alleged commercial vilified behavior and Tencent QQ alleged abuse of dominant market position on the analysis of unfair competition and monopoly and the illegal matters of the bilateral beneficial war. Moreover, we realized the unrest and confusion situation of China's Internet market and the ignorant and damaging attitude of the network enterprises toward the netizens. Thereby, arousing our reflection of the perfect of the legislation and the law enforcement, strengthen the supervision. Meanwhile, give advice and guidance to the establishment and perfection of the relevant legal system, the strengthening of the law enforcement and effective guidance, the completeness of the precautions, the supervision and post processing under the premise of scientific and reasonable, the cultivation of the  virtuous sense of market competition.

Key words: QQ; Qihoo 360; internet service market;unfair competition; monopoly