Classic Moslem scholars discussed the water on starting chapters in their books. It is shown how important the water in Moslems attention as a basic need that Moslem must know. The water in Islam can be disputed in two terms. First, in the ecology perspective, second, in the mahdhah ritual perspective. In the first one, the concept imagines the water as a basic condition for life being and human as khalifah Allah fi al-Ardh. This contains ecology perspective. And the other one is for ritual condition in Islam ethic (ilm al-fiqh). Ilm al-fiqh or Islam ethic said that the water is a basic material for removing hadath (forbidden situation for taking Islamic mahdhah ritual) and cleaning najasat (the dirty materials in shariah perspective). In other hand, sciences make a new way to understand Al-quran and al-sunnah as a new interpretation of Al-quran specially in nature and all creations in universe and ritual activity in sciences prespective