Government integrity plays a pivotal role in assessing and evaluating the relationship between the government and market entities. As a crucial component of the national credit system construction，government integrity not only reflects the level of the country’s credit system but also directly manifests the trust of market entities in the government. This assessment sets two secondary indicators and four tertiary indicators under the primary indicator of “government integrity” to examine the interaction between the government and market entities，aiming to more accurately depict the government’s credit status. While the publicity of investment promotion policies has shown positive effects，the standardization and universality of preferential policies still require enhancement，and the mechanism for holding the government accountable for contract breaches needs further improvement. Therefore，to elevate the government’s integrity level，it is essential to intensify efforts in constructing a comprehensive list of preferential policies and to strengthen the mechanism for holding the government accountable for contract breaches，thereby providing a more stable and predictable business environment for market entities.