Currently, disposal of wastes in landfills is taken to accounte as a common stertagy of waste management in many countries. One of the major concerns involved in landfills is seapage of rain water and leachate into underground water. Geosynthetics clay liners (GCLs) are used as hydraulic barrier layers in bottom liner systems for landfills. GCLs consist of a thin layer of bentonite (mass per area 3-5 Kg/m 2 ) that is sandwiched between two geotextiles. In this study, the impact of one fluid (leachate from Isfahan Landfill) on the chemical and hydraulic properties of 12 samples of geosynthetic clay liners (GCLs) is evaluated. The the leachate movement was simulated with HYDRUSE-1D software and were investigated efficiency rate of model in movement leachate through this type of soil . 12 GCLs were difference in Bonding method (needle punched and adhesive) and type of bentonite (Isfahan/ Arak bentonite) and mass unit area (4/ 4.5/5 Kg per m 2 ).Results indicate hydraulic conductivity of GCL with adhered bonding in peresure 40 Kpa is rather than needle punched GCL same peressure. Effluents from permeation test were collected each end of day then pH and cations content (Ca 2+ ,Na +1 ,K +1 ) were measured. Results also indicate that cation exchange occurred due to modifications in cations concentration and .increaseing pH ratio reveal bentonite have uffering impact . Analysis of residual errors, differences between the measured and simulated values, was performed to evaluate the model performance, based on the mean absolute error (MAE), root mean square error (RMSE). The outputs from models were compared against the measured flux per unit area data. The mean absolute error and root mean square error are .4.4875 and 3.6604 respectively. These numbers show masuread and simulated values is not match because of HYDRUSE-1D software not abale consider swell of bentonine When saturated