The current paper presents an introduction to the Assyrian Lifetree inscription and its significance in the Iraqi arts. This ornamentation is one of the masterpieces designed by the Iraqi artist. The main source for this paper is the uncovered evidence during the excavation. Many paintings, reliefs and cylinder seals are found in many sites in Iraq. These samples are to be investigated in this study, analysing their artistic properties and the methods whereby the artist designed them. This decorative element sheds light on very important aspect of inscription in the ancient Iraq. It is regarded as the spring point for inscription in the subsequent ages. This study aims at knowing the Iraqi aquaintance with Life tree up to the end of the NeoAssyrian age. This kind of inscription was wellknown in ancient Iraq. Therefore, we can easily deduce many reasons behind such spreading in the first place, the religions motive. Similarly we deduce the natural beauty that attracts human beings consequently employing this beauty in ornamenting the sculptures, wallpapers and cylinder seals. Finally the technical aspect was among the motives behinds such kind of inscription.The excavation was done at the University of Mosul expedition to rescue the remained Tell Slal and Tell Dhuwayyich near the old twon of Zimmar. The excavations lasted three successive seasons.