Curing budget violation is a necessary condition to achieve fiscal sustainability.We use China’s central budget implementation audit data to explore the reasons for the budget violation from two angles：budget transparency and budget adjustments，finding that more budget amendments will restrain the budget violation rate，and more budget cuts will induce the budget violation rate，and there was a significant negative correlation between the two，but the negative correlation weakened with the increasing scale of the expenditure of the department budget.Moreover，there was a significant negative correlation between budget transparency and budget violation，the previous years budget transparency is not significantly related to the extent of the budget violation.Budget transparency does not have a significant impact on the relationship between budget adjustments and budget violation.Therefore，deepening the budget disclosure，standardizing the budget adjustments，promoting the medium term budget，and optimizing the budget implementation audit is imperative for the improvement of government budget system and budget violation governance.