Open insurance is a frontier issue in study on financial fields nowadays.It can deal with lots of problems and difficult in current industry transformation development.The paper systematically collated the framework of open insurance based on native and foreign literature studies.The text explained connotation and denotation of open insurance from the prospect of data dimension on insurance data，risk data and third-party data；product dimension on insurance product， risk service and override insurance；ecological dimension on sales ecology，embedded ecology and platform ecology.We studied the effect of open insurance on industry value chain from the point of data，product and ecology on nine levels. Then we presented the optimized scheme on industry value chain of automobile insurance.They guided to deal with the problems of the decreasing of growth rate，the lower of profits，concentrating of market that insurance industry faced with.