The biosorption of heavy metals has received a lot of attraction for application of metal ions treatment. In this work, we studied with Arthrobactor sp., screening from a wastewater containing heavy metals. The Pb uptake capacity of Arthrobactor sp. was nearly 146.9 mg Pb/g dry biomass(initial concentration, 500 may L), whereas the Pb uptake capacity of Sacchuomyces cerevisiae and Sacchuomyces uvuum were only around 39.40 and 35.65 mg Pb yg dry biomass, respectively. The Pb and Cr were removed from metal solution much more effeciently than were the other metals(Cd and Cu). The Pb uptake capacity of Aythrobactor sp. increased with increasing in pH(1.8, 3.0 and 4.0) and decreased with Increaslng of biomass concentration. At pH 4.0, the Pb uptake capacity reached 244 mg Pb/g dry biomass in Pb initial concentration of 1000 mg/L. The Pb uptake capacity of Ayhol)actor sp. treated by KOH and $CaCl_2$ were increased above values obtained with untreated Ayurobactor sp. However, the Pb uptake capacity fore the breakthrough points were reached.