Blockchain technology is based on a new data storage and usage method，by increasing the storage cost of data，transmission costs and computing costs to reduce the cost of trust information. Based on the blockchain technology can establish a consensus mechanism in a distributed network and minimize the execution costs of contracts. Based on the above characteristics，the blockchain has a wider application value in the insurance industry product development，risk prevention，process optimization and mutual insurance and other fields. The application of block chains requires breakthroughs in bottlenecks in technology，markets，and law，and requires practice based on the balance between expected returns and input costs.