Abstract
Due to the particularity of chemicals, chemicals are prone to accidents during the operation of the supply chain. The chemical accidents cause great harm to people's lives, property and surrounding environment. In the daily operation process, the chemical enterprises not only consider the safety factors, but also think over the effective operation. There are many uncertainties in the chemical supply chain, which will bring potential risks to the safe and effective operation of the chemical supply chain. These risks are transitive. Once the risk occurs in one link of the supply chain, the risk will spread to the entire supply chain and bring great losses to the whole supply chain. In this paper, we research the risk early warning of chemical supply chain. We propose the new algorithm and establish the warning indicators. The experiments verify the effectiveness and accuracy of the proposed model.