Lysine sulphate 70% is a high-density dustless fluidity particle. lt is combined with 55%ofpure lysine(about 70% lysine sulphate), besides it also has more than 15% of other aminoacid, which can provide with animal full and balance nutrition needed. lt is the limitingamino acid for pigs and the second for poultry, The level of dietary l-lysine concentrationsignificantly influences on the growth performance and feed efficiency. Supplementing-lysine in dietary could balance the amino acid profile in the formula and fulfill therequirements of animals to optimize the technico-economic result of production.