The role of the diagnostic industry in the medical system is becoming more and more important. With the support of various favorable policies，China’s adjoint diagnostic industry has entered a growing period，with PCR，FISH，IHC，NGS and other technologies maturing，and advanced technical platforms such as liquid biopsy，PDC，PDX and organ-like have been developed gradually to form a diversified pattern of technological platforms and products，complementing each other with various technologies and products. A number of enterprises engaged in the diagnostic industry have developed rapidly and become the leader of a segment of the field，innovation in the product side，the market scale is expanding year by year. But at present，China’s accompanying diagnostic industry market concentration degree is not enough，the result conversion rate is not high，is still in the follow-up stage，in order to realize the leading run，but also needs to strengthen the industrial innovation，from the clinical needs of design products，to form “good money evictions bad money” ecology.