Abstract This paper uses panel data of 31 provinces (cities, districts) in China from 2005 to 2016 and adopts static panel data model to empirically study the risk contagion mechanism of regional financial risks among four sectors in China. An empirical study shows that there are many risk-contagion paths among the four sectors in the process of regional financial risk contagion in China. Among them, the financial sector is at the core of the contagion mechanism, which shows great liability of being affected as well as affecting other sectors. The risks faced by the family sector have increased in recent years, and the effects of risk transmission in other sectors have been strong, and the family sector is most vulnerable to risks from other sectors.