The policy of deficit budgeting had grown tremendously in Nigeria between 1985 and 2008.The essence was to help accelerate the growth of capital in Nigeria using the policy of deficit budgeting as formulated by Keynes. The statement of the problem is: To what extent is the policy of deficit spending applicable to Nigeria as a tool for economic growth and development bearing in mind that Nigeria is a newly emerging industrialized country and that the policy of deficit spending has prominence in the Keynesian macroeconomic model, which was developed for conditions appropriate for developed countries. Categorically in Nigeria, the reverse seems to be the case. This is given to the fact that the major policy focus or thrust of SAP was to divest government in the operations of the economy and promote private sector driven economy through privatization programme. Yeit the government is still prominent in deficit spending. We seem to focus on classical ideas but tenaciously hold on to Keynesian conduct. Want to evaluate the impact budget deficit has on the economic growth of the economy. The study found out that a high positive relationship exists between Government Expenditure and the Economic Growth of the Nigerian Economy. From the analysis of hypothesis one the result represents a high positive relationship. A high positive influence of the budget deficit on the Nigerian economic growth. The analysis of hypothesis two depicted a very high positive influence of budget deficit on Nigerian economic growth. It is recommended that: at the present time states can only use public loans in order to cover the surplus of public expenditures over current incomes. As it supposes temporary redistribution processes of disposable resources already existent in the economy, this way of financing budget deficits generally does not have an inflationary character; the continuous concern of contemporary governments to reduce or to maintain, within acceptable limits, the budget deficits is justified, in order to fight against inflation and its negative effects; effort should be made by the government to settle the outstanding domestic debt. This will give room for proper conduct of monetary policy in the economy; it will be healthy if the government strive to finance budget deficit by improving on the present revenue base rather than resulting to domestic borrowing. This can be achieved by improving its revenue sources and efficient pursuit of tax reforms.