Under continuous irrigation with Bahr El Baqar drain water in Egypt, chemical speciation of Pb and Cd in soils is critical to understand, their mobility and potential toxic effects. In the present study, sorption isotherm experiments of these metals in nine representative soils were assessed at varying metal concentrations (20, 40, 60, 80 and 100mgl−1), solid to liquid ratio 5g/50ml and contact time (24h). Additionally, the kinetic experiments were performed using initial concentration of 100mgl−1 Pb or Cd and contact time of 2, 4, 8, 12 or 24h. The two experiments were carried out at 298K. Low amounts of Pb were found in exchangeable and carbonate fractions comparing with the residual, oxides and organic fractions for the most studied soils. On the other hand, the residual fraction of Cd speciation was dominant for all the studied soils, followed by carbonate fraction. Both Langmuir and Freundlich models isotherm for Pb and Cd adsorption by these soils were fitted. The second-order kinetic model was the best fit model for the adsorption mechanism in these soils. These soils are still able to be retained and more loaded with Pb and Cd, since they did not reach their saturation capacities. Taken together, continuous accumulation of these toxic metals will be exposed to the environment to real disaster under bad management in this region.