Today, the climate crisis in the world is clearly related to water. It causes an increase in the variability of the hydrological cycle which eventually causes extreme weather events reducing the predictability of water resources and threatening the sustainable development of natural resources. Hydrological abstraction such as infiltration is a fundamental parameter in the process of simulation and modeling of the water balance in a basin. These parameters allow us to analyze and determine the degree of reduction experienced by precipitation from the atmosphere to eventually become a runoff. However, the degree of knowledge of this abstraction is the product of our research process that will reduce the uncertainty that accompanies the results of all hydrological modeling. In our work we aim to study the infiltration rate and map the saturated hydraulic conductivity in the upstream part of Merguellil watershed using two methods which are Beerkan and Mini-disc infiltrometer. The mini-disc infiltrometer has been more effective in some places with greater difficulty of access, and where the sand percentage is highly represented (sandy soils). On the other hand, Beerkan method also has been effective. In other parts the only limit was the amount of water required to perform the test and the availability of water. The reliability of the results was assessed by the correlation coefficient (CC) that was equal to 0.96, the root mean square error (RMSE) that was equal to 23.0067 mm/h, and the Bias that was equal to 19.0014. By that, we can consider that the two methods were performing good enough to be used in further studies.