The purpose of this study was to evaluate the performance of broiler ducks fed ration based on fermented sago pulp using 96 of day old ducks (DOD). The treatment were T0 = 100% commercial ration, T1 10% fermented sago dregs; T2 20% fermented sago pulp, T3 = 30% fermented sago pulp. The design used was a completely randomized design (CRD) consisting of 4 treatments, each treatment was given 4 replications and consisting of 6 DOD. Application of sago pulp for 8 weeks, including 1 week as a pretreatment for adaptation. The results showed that the fermented sago dregs did not have a significant effect (P>0.05) on the average feed consumption and feed conversion of broiler ducks, but had a significant effect (P<0.05) on the average final body weight and weight gain. Histological observations of the intestinal villi showed that fermented sago pulp changed the structure of the villi. Statistical results showed that the width, height, and intestinal surface area of the intestinal villi had a smaller significant effect on each treatment than control. Based on the results of the research, it can be concluded that fermented sago pulp significantly reduced the characteristics and histology of the duck intestine.