Internet finance is developing rapidly in recent years. But behind the prosperous phenomenon，its risk also increases. As the financial capacity of internet finance enlarging by years and investing areas across different regions of our country，the internet finance’s influence to the financial stability in our courtier has become significantly. However，many investors in this industry have a poor anti-risk capability. Besides，the opaque platform for the internet financial information and the status quo of mixed products and platforms，all make supervision more challenging than ever. At the same time，viewing from the regulatory point，Chinese financial regulation system is in the mode of separating supervision，which leads blanking gaps when facing internet finance industry. We need to explore a new method and modality to internet financial supervision. Utilizing big data and other advanced technologies，a “smoking index” and monitoring platform has been developed，displaying quantitated companies’ daily business activities and related information. Regulators supervise and handle companies with different ways due to their different stage of quantitative risk scores，for early detection and early treatment. “Smoking index” is very effective to troubleshoot，playing an important role to maintain social and financial stability.