In the post-financial crisis era，prevention of systemic financial risks has become one of the focuses of our country's central economic work.Effective identification and measurement of systemic risk helps prevent systemic risks.This article breaks through the limitation of establishing systematic risk index system based on financial market department and attempts to establish the index system of systematic risk from the perspective of risk category based on the method of risk dashboard and uses the CISS method to synthesize systematic risk Composite Index CSRI.Empirical studies in this paper show that CSRI basically reflects the systematic risk situation of China's financial market，and it is robust to measuring China's systemic financial risk.