This research work is titled “The role of Accounting in the control of public expenditure” the incessant incident of budget deficit, misappropriation and embezzlement ofproject fund due to lackof good accounting system constitute the problems that necessitated this research. The main objectives are: To ascertain whether adequate budgeting can regulate public expenditure, to ascertain whether a good accounting system can ensure transparency and accounting in execution in public expenditure and evaluate standard of costing impact on the control of public expenditure. Data for this work was obtained using questionnaire. The z test formular was used to test the hypotheses, the sample size is (50) fifty, this actual sample size was used because the size was not large. Some of the findings were that: public revenue and expenditure constitute an integral aspect of government budget and that the execution of public project by government entails incurring public expenditure. Recommendations made were that: Adequate government budget can regulate public expenditure, and an efficient and effective accounting system can ensure transparency and accountability during public expenditure execution. Recommendations proffered were: government should seek for the services of professional accountant during budget preparation. Government and other public institution should instill good accounting and internal control system to check embezzlement ofproject funds.