According to Sina Finance News, the 2019 Digital Finance Annual Summit was held in Beijing on December 20. At the meeting, Wang Jing, a partner of Ernst & Young, said that blockchain is a mechanism for establishing trust in an environment without trust. Blockchain technology is applicable in any scenario without trust. The issue of trust is to some extent a core issue of the Chinese economy. Blockchain can allow developing countries to avoid repeating the 100-150-year-old road of developed countries to build a trust society, and directly enter the trust society to achieve cornering overtaking.