In terms of the importance of preserving the aquatic ecosystem of wetlands in Egypt and the Aquatic resource Functions with preserving the Services, this research was initiated with this objective through the numerically investigating the Borollos Lake water quality that deteriorated due to the huge of discharging the wastewater in order to enhance its quality. Primarily, the available measured data was collected in order to visualize a complete data picture the lake, and also, filed visits were carried out; Literature was assembled and reviewed, from which a double standard approach was implemented, where model investigations, for water quality hydrodynamics, were achieved by SMS12.1.7 (SMS-TABS). A model for simulating the hydrodynamic conditions and water quality within the lake has proved to be a good and effective model for this purpose and has proved its good ability to simulate the conditions inside the lake, which has enabled the use of several scenarios to restore the ecosystem of El- Borollos lake and propose different scenarios to improve the quality of the lake until the lake recovers its ecosystem.