| The experiment was conducted to determine the effect of water soaking of sweet orange (Citrus sinensis) fruit peels on haematology, carcass yield, internal organs and gastro-intestinal tract (GIT) of finisher broiler chickens. Four lots of sweet orange (Citrus sinensis) fruit peels were soaked in water for 0, 12, 24 and 36 hours, sun dried and milled to produce sweet orange fruit peel meal (SOFPM). Four SOFPM based diets namely D0, D12, D24, and D36 were compounded by replacing 20% of dietary maize in the control diet (DN) with the SOFPMs. One hundred and fifty (150) brooded Anak 2000 broiler chickens with an average initial weight of 1051.00 + 0.92g were grouped into five, with each group replicated three times and a replicate contained 10 birds in completely randomized design and assigned to these diets in a feeding trial which lasted for 21 days. Results of analysis of variance on mean haematological indices, fasted body weights, carcass yield and internal organs were not significantly different (p>0.05) among the treatment groups. With the exception of large intestine length, which was significantly decreased (p<0.05) at D0, all other GIT morphometrical indices were not significantly different (p>0.05) among the treatment groups. It was concluded that 20% replacement of maize by SOFPM was safe for finishing broiler chickens.