Abstarct: Absorption in the development of new technologies in water treatment and waste water containing heavy mextals, the main objective of this study was to remove the heavy mextals lead, copper and cadmium from contaminated water or aqueous solutions with the use of absorbents biocompatible nanoparticles. Manganese dioxide nanoparticles with different nanostructures were synthesized by electrochemical method. SEM, XRD and FTIR analyses were used to identify the synthesized adsorbents. Characterization by SEM showed that the prepared sample has particle size of 30 to 50 nanometers. The process of absorption of heavy mextals ions of lead, copper and cadmium was studied in a batch system. The effect of experimental parameters including pH, contact time, initial mextal concentration on the adsorbent and the adsorption was studied. Langmuir and Freundlich adsorption kinetics as well as the heavy mextals lead, copper and cadmium on manganese dioxide-absorbing nanoparticles on the model of Ho and colleagues, rather than the lagergren was investigated. The results showed that the maximum adsorption capacity for the absorption of manganese dioxide nanoparticles equal to 192/30, 169/49 and 42/015 mg/g, respectively, for Pb, Cu and Cd, respectively. For the adsorption of the lead and cadmium mextals, Langmuir model was the best model fitted to the experimental data, indicating the multilxayer adsorption of mextal nanoparticles on the surface of manganese dioxide. However, experimental data on copper Freundlich model, which represents a multilxayer adsorption on heterogeneous surfaces has followed suit.The data obtained in this study showed that the rate of uptake of each mextal for interactive kinetic model of Ho et grieve. Finally, the results indicated that nanoparticles has a significant manganese dioxide absorption capacity and The use of nanoparticles for the removal of heavy mextals lead, copper and cadmium from aqueous solutions is very appropriate and efficient.