Abstract: The performance of parabolic solar water heater is quite sensitive to the latitude, day of operationas well as the tracking mode. In this study, a five different tracking mode are invited North-South rotate and East-West rotate over the four season of the year and to perform the suitable one for using in Basra city an mathematical model was used and programming with EES program. The results show that the performance of all tracking systems are closely at noon and the tracking system mode 5 give the highest collected energy with 34% increase from East-West rotate mode.