Abstarct: Nowadays, growing number of population leads to need more water resources, and finding new water resources is a good respond for this human’s need. Round water drainage to the sea can be a good water resource, with nice quality and large volume. Sadul anticline which is the longest anticline beside Persian Gulf, is located at the border of three provinces, Fars, Hormozgan and Bushehr. Hydrological balance is used to see if it’s possible to drain ground water from Sadul anticline to the Persian Gulf. In this method amount of ground water drainage and feeding is assessed. Providing information laxyers let us to know about effective factors on feeding and overlap of this laxyer in GIS environment and yearly feeding percentage in different parts. Precipitation map was prepared by using raining-water level graph. Due to the feeding percentage in different parts of area and by the use of isohyetal map, yearly feeding volume was measured. Furthermore, according to acquired result it can be met that yearly feeding volume in Sadul anticline is about 201 million cubic meter. Since the area’s springs and pits yearly drainage volume is about 111 million cubic meter. So yearly feeding percentage is about 88 million cubic meter more than yearly drainage percentage. We can state that probably a part of feeded water of Sadul anticline drains into Persian Gulf, because it’s beside this gulf and there are some transverse faults which cut Sadul anticline.