The study was carried out to determine the effect of Turmeric root powder (TR) inclusion in the commercial diet on performance and egg quality of laying hens. 240 Hisex Brown laying hens at the 30 weeks of age were randomly distributed into a completely randomized design experiment, with 4 treatments and 15 replicates (pen), each replicate consisted of 4 birds/pen, and the experimental data was collected during 10 weeks. Treatments used: TR0: Basal diet + 0% TR (control); TR1: Basal diet + 0.1% TR; TR2: Basal diet + 0.2% TR and TR3: Basal diet + 0.3 %TR. The results showed no effect of Turmeric root powder on feed intake, egg weight and feed conversion ratio, but a little improvement of hen- day production and egg mass in the TR2 and TR3 diets compared to control and TR1 treatments. There was no significant effect of treatments on egg shell weight, shell thickness, albumen weight, yolk weight and Haugh Unit. But there was a significant improvement of (b) yellowness value of yolk color in the TR2 and TR3 supplemented groups compared with control group. However, the higher TR inclusion in the diets the higher expense of feed/kg egg. In conclusion, adding Turmeric root powder at 0.2 and 0.3 % in diet could slightly improve hen- day production, egg mass and egg york color of commercial laying hens, but increase the expense of feed/kg egg.