AL-Ahasa oasis is one of the oldest human stability and urban areas in the eastern region, as they are considered special to the Kingdom are most globe Saudi urban Southeast side and link the Kingdom with neighboring Arabic Gulf. It features large square-AL-Ahasa County of about 669492 square kilometers (86%) Of the total area of the eastern region, and constitute the poorest lands, deserts and OASIS, which took her name County, vibrant heart, where abundant water and fertile farmland. AL-Ahasa

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... OASIS area does not exceed about 252 square kilometers, forming a small percentage of conservative area around 38%. AL-Ahasa oasis is the center of gravity in the province that is inhabited by approximately 689884 inhabitants (according to the statistics of the year 1993), form (92, 52%) Of the total population of the County, and are concentrated in three major cities AL-Hofuf, AL-Mubarraz, eyes. Oil has resulted in the eastern region of the Kingdom to attract people to settle in the OASIS, resulting in growth of large urban area doubled three cities in 70 years between 1930-2000 m a dozen times (omair, 1999), leading to the fusion of the cities. Current research seeks to take advantage of modern techniques in geography represented by remote sensing technology, geographic ‫في‬ ‫الثقافي‬ ‫التنوع‬ ‫أثر‬ ‫االتجـاهـا‬ ‫تعدد‬ ‫المعاصـرة‬ ‫التفسـيرية‬ ‫ت‬ ‫اآلداب‬ ‫كلية‬ ‫بحوث‬ ‫مجلة‬ 1337 information systems, in showing urban growth area in the horizontal AL-Ahasa oasis for the period 1987 until 2018. As remote sensing and geographic information systems of the most important tools of modern scientific research support for geographical studies, which proved important in geographic research applied it unused for many researchers the Arab geographers. Although they are widely used in European and American countries for many years.