Babban Bankin Duniya wata cibiya ce da aka kafa a shekara ta 1944 kuma tun daga shekara ta 1958 ta ba Najeriya lamuni da bashi mai rahusa ta hannun Developmentungiyar Ci Gaban Internationalasa ta Duniya (IDA) da Bankin forasa don Sake Gyara da Ci Gaban (IBRD). Ya zuwa shekara ta 2018, ya ƙunshi ƙasashe mambobi guda 189. Babban burinta shine taimakawa da sake gina kasashe bayan yakin duniya na 2. Amma yanzu, burinta shi ne kawar da talauci a cikin kowace ƙasa memba. Bayan samun 'yencin kai a shekara ta 1960, a hukumance Najeriya ta shiga Bankin Duniya a ranar 30 ga Maris, 1961. Kasancewar burin da bankin duniya ya gabatar a kasashen daban daban, a hankali a hankali tsawon shekaru sun tsara bankin zuwa hukumomi biyar don tunkarar wasu batutuwa a cikin kasashe masu karamin karfi. Tun daga wannan lokacin, Nijeriya ta yi ƙawance da IDA, an gina ta musamman don taimakawa ƙasashe masu ƙarancin kuɗi da ba da rance don ƙarancin ƙimar riba, da kuma IBRD..