With the continuous advancement of the construction of intelligent public security,the public security organs have got initial achievements in the application of emerging technologies and infrastructure construction,and public security decision-making is experiencing the transformation from the traditional mode to the data-driven one,but the dilemmas of intelligence failure and decision-making failure in the data-driven public security decision-making operation system still seriously impede the intelligent decision-mak-ing.A data-driven public security decision-making system based on evidence is helpful to enhance the data exploration and application while making public-security-related decisions,and effectively promote the intelligent,precise and long-term public security decision-making in the new era,which will provide a new direction for the public security intelligent decision-making in the big data era.