Abstract: Enterprise group facing the uncertainty of external environment is more and more great for rapid development of the social, economic and science and technology, which may damage to social public or the customer’s benefits, if the group does not deal with crisis management or crisis management is not successful, it is a disadvantageous position to the enterprise, therefore enterprise group to keep sustainable development of the competitive advantage, must be risk warning system to the group. This study sets about research design from method. Conduct a comprehensive evaluation of the risks faced by the group by means of the establishment of the risk index system , screening and evaluation methods and the group risk warning signal system and group risk warning model. Early warning signal system and fuzzy comprehensive evaluation method are applied to the group's quantitative and qualitative early warning.