The fertile soils of Egypt are of a paramount importance in term of strategic economical decision. In the last few decades encroachment on the fertile agriculture soils was tremendously increased by urbanization. Sinnuris District in El-Fayoum Governorate was selected to follow up the urbanization impact during the period from 1957 to 2010. The urbanization areas were estimated in years 1957, 1984 and 2010, by using details maps (scale 1: 100,000) published from Egyptian General Survey Authority, (EGSA). Also the increasing of encroachment were estimated 1984 from the Thematic Mapper (TM5), while the urban area in 2010 was estimated by Quick Bird (QB) and the aid of field check. Data showed that, the urban areas were 957.45, 3003.33 and 6128.84 fed. in years 1957, 1984 and 2010, respectively. The annual increasing rate was equivalent to 75.77 fed.yr^-1 during 1957 up to 1984 and 120.21 fed.yr^-1 during 1984 to 2010. The study cleared up that, increasing of population percent from (1984-2010) was 104.07 less than the increasing of urbanization percent (2%). This was attributed to the higher input of real estate investment compared with that of agricultural investment. The study elucidated that, the loss of the geographical area was 3125.51 fed. and this means 6251.02 fed. of productive area. Estimation of annual agricultural production return of such area ranged from 17'833'022'37 to 44'387'367'53 LE. To protect the fertile agriculture soils from the encroachment, the authors recommend: 1. Building new cities in the desert. 2. Interesting with family planning programs. 3. Increasing the punishment for encroachment to the agricultural soils or the trickery to be left uncultivated. 4. Increasing the density of population. 5. Applying of urbanization.