Nigeria budgetary framework has over the years witnessed continuous expansionary fiscal policy, both in the recurrent and capital expenditure but there seems to be little or no corresponding effect on the growth of Nigerian economy. This study assesses the impact of fiscal policy on the growth of the Nigerian economy. It further attempted to determine the effect of the federal government expenditure and its significant on the growth of the economy. This study methodology adopted Philips-Perron (pp) unit root test, Johansen cointegration and error correction mechanism. The Ordinary Least Square (OLS) of multiple regression analysis was used for the model estimation. The analytical result showed that government recurrent expenditure has significant relationship with economic growth in Nigeria and that capital expenditure also impacted negatively on its economic growth during the period under study. Government tax revenue has a negative and significant relationship with economic growth in Nigeria, inflation is negative and insignificantly related to economic growth in Nigeria. Among others, the study recommended that government should carry out tax incentive measures to encourage the growth of industries and enhance productivity, increase budgetary capital allocation, and promote transparency in the budget implementation.