The present paper investigates the effect of abstraction patterns of the pump stations on the flow filed in El-Kanais distribution canal under effect of continuous flow. Two of the famous simulation models, including ISIS and SOBEK are used to simulate the water surface profile and flow velocity. The simulation models are verified using the designed water surface. The used abstraction patterns during simulation represent the most probably cases that may happen during the irrigation process and the most critical one is detected. The results indicated that the actual sections of the canal are not sufficient to carry the required discharges under continues flow. Three solutions are proposed to solve the water shortage problem for the critical abstraction pattern in the canal. Finally, the most efficient proposal is recommend.