Measuring and evaluating the level of holistic governance in government and exploring its improvement mechanisms can help address the fragmentation problem in crossdomain governance As policy coordination serves as an important indicator of holistic governance, this study analyzes standardization policy texts from 15 provinces between 2014 and 2022 The LDA model is used to identify policy theme distributions between central and local governments, the PMC index model is employed to evaluate policies and construct an indicator system, and a coordination degree model is applied to measure horizontal and vertical policy coordination, thereby forming governance measurement results Furthermore, the fsQCA method is adopted to analyze the influencing pathways of five variable configurations on governance levels The findings reveal significant disparities in the level of standardized holistic governance across regions, with unstable governance effects Individual factors in social, institutional, and technological dimensions do not constitute necessary conditions for a high level of holistic governance; instead, they exhibit certain substitutability Four distinct pathways are identified that enhance standardized holistic governance, demonstrating equifinality Under specific conditions, local governments can overcome constraints imposed by institutional and resource limitations and choose contextappropriate pathways to improve their standardization governance capacity