本文通过分析网格时代对社会伦理的影响 ,探讨网络社会面对的伦理难题 :知识产权与个人隐私 ;信息安全与信息垄断 ;信息污染与信息欺诈 ;信息滥用与信用危机。对网络社会的伦理问题作了对策思考 :尽快建立信息伦理准则 ,形成网上道德舆论氛围 ,推动个体的道德自律 ;防止符号世界的异化 ,加强人文精神的培养 ;正确对待异质性伦理和同质性伦理 ,形成全球伦理价值观 ;坚持信息伦理发展的多元化和一元化的统一 ;以科学的态度、全新的观念和有效的方法推进我国的网络伦理建设 By analyzing the influence of the grid era on social ethics, this article discusses the ethical challenges faced by cyber society: intellectual property and personal privacy; information security and information monopoly; information pollution and fraud; information abuse and credit crisis. The article makes some countermeasures to the ethical problems of internet society: to set up the guidelines of information ethics as soon as possible, to form the atmosphere of online moral opinion, to promote the moral self-discipline of individuals, to prevent the alienation of the symbolic world and to strengthen the cultivation of humanistic spirit, to correctly treat the heterogeneity of ethics and homogeneity Sexual ethics, forming a global ethical values; adhere to the development of information ethics pluralism and unity of unity; with a scientific attitude, new ideas and effective methods to promote China’s network ethics