Abstract:Under the background of deceleration governance,the dynamic relationship between the integrity of government officials and the effectiveness of fiscal policy has aroused widespread concern in society.Based on the MS-TVTP model,in consideration of transfer probability with time-varying characteristics,the research found that,China’s corruption governance has achieved periodic results,but it has not shown a continuous improvement trend;the improvement of the government’s integrity is helpful to improve the effectiveness of fiscal policy,and is conducive to the relative extension of the economic expansion interval,and ultimately promotes economic growth,however,due to the fact that China is still a severe corruption area and the degree of improvement is limited,the promotion effect is not very prominent;in addition,the promotion of credit policy to economic growth is very limited.

Keyword：Output gap; Fiscal policy; Corruption Perception Index;