INTRODUCTION
Investigation are been carry out in this project, central bank of Nigeria is a financial institution establishment by the law (Act of parliament) vested with power of promoting monetary stability sound financial system by issuing legal tended currency, maintain the value of domestic currency etc. CBN source of funds were form share capital, general reserve, currency in circulation deposit by federal government (FG) deposits by the sate government and deposit by banking industries etc. 
Central bank of Nigeria (CBN) is supposed to contribute to the economy development of a Nigeria in the following ways. Such contribution done by CBN were issuing of currency notes, funding agriculture sector, funding banking industries, prevention of bank crisis etc. Also CBN is suppose to contribute to economic growth through monetary policy in the economy such as bank rate, open market operation (OMO) legal reserve ratio, special deposit and moral suasion etc. CBN have constitute economy growth by using money market instrument like treasury certificate, banker unit find etc.
In this project the area I want to work on is monetary policy. The aspect to study is bank industries that CBN had aid to growth and development.