Translation is one of the main mediums of communication among nations of the world.Familiarity with culture and civilization of other nations requires knowledge of their language. Translation conveys concepts, sciences and cultural technology to other cultures and results in their growth and flourishing. Historical investigation shows that translation played a significant role in the transmission of foreign cultures to Arabic culture and helped it grow in Abbasid era. In this era, Arabs made connections with civilized nations such as Iran, India and Greece and translated many of their scientific writings. Translated works attracted translators and scientists attention and they began to study, interpret, criticize, and correct these works. This in turn paved the way for Arabs scientific revolution and soon they began to show initiatives and creativity and made great advances in different fields of science such as medicine, mathematics, astrology, chemistry, physics, philosophy and so on.