Abstract: The bottlenecks and obstacles that hinder the construction of a unified national market fundamentally lie in the incomplete change of market orientation. The old administrative management control mechanism hinders the unity of the market and divides the large market. The Five Unifications and One Opening-up is the specific path for the government to promote the construction of a unified national market, and its key lies in the consistency of rules and policies and the unity of behavioral standards. In the current construction of a unified national market, there is an urgent need to break through various institutional implicit barriers in market access, and substantially carry out zero barrier opening-up and reform. Competition law is the fundamental law regulating the market economy, and anti-monopoly enforcement is a powerful tool to promote the construction of a unified national market. Credit economy is an important component of market rule, competitive order, and market environment optimization in the construction of a unified national market. Building a credit economy system is an important focus for the active government in the construction of a unified national market.
