The study was aimed to demonstrate the effect of withdrawing the protein concentrate and reducing the crude protein to the level of (16 and 15%) in the diets and supplementing them with a mixture of amino acids (methionine, lysine and threonine) at a rate of 1, 1.5, 2% on the productive performance of laying hens. 128 laying hens of the Lohmann Brown were used, at the age of 21 weeks. They were randomly distributed in to 8 treatments, with 8 replications for each treatment, as each replicate includes 2 chickens (16 chickens/treatment). The experimental treatments were as follows: T1 the control (standard diet), T2 a treatment devoid of the protein concentrate, and the T3, T4, and T5 Reducing the percentage of crude protein by 1% and adding a mixture of amino acids by 1, 1.5, and 2%, respectively , and the T6, T7, and T8 Reducing the percentage of crude protein by 2% and adding a mixture of amino acids by 1, 1.5, and 2%, respectively. The results showed that there were no significant differences in the interaction rates for the protein reduction treatments 1 and 2%, but it was observed that there was a significant superiority (P>0.05) in egg production, egg weight rate, feed consumption rate, feed conversion efficiency, egg mass and rate of body weight is in favor of treatments adding a mixture of amino acids at a rate of 1.5 and 2% and with a reduced percentage of protein 1 and 2% compared to the control treatment with out of the protein concentrate. It can be concluded from this study that adding a mixture of amino acids at a rate of 1.5 and 2% and reducing the percentage of protein by (1 and 2%) led to a significant improvement in most productive traits compared to the control treatment (with out of protein concentrate).