Agro-industrial waste due to the high pollution potential among industrial wastewater can have significant impacts on the environment. Sugarcane industry wastewater requires applying biological methods such as activated sludge with complete-mix because of non-permanent drainage and high organic load. The purpose of this study is to review and determine the kinetic’s coefficient of activated sludge of sugarcane industry wastewater treatment plant. This study was performed over a 6 -month period in 2012 and TSS, COD and BOD parameters in the input and output wastewater and the amounts of MLSS, F/M, MLVSS, SRT and HRT of the aeration basin were measured and kinetic values Kd, KS, K, Y and μmax were determined using the modified Monod equations as 0.05 d-1, 36.6mg/l, 2.5 d-1, 0.36gVSS/g COD and 1.02 d-1. The results showed that the kinetic coefficients of activated sludge with complete mix of sugar cane industry was similar to other studies in this industry and system is functioning in reduced growth phase.