Including political and economic advantages of the Sasanian era , the great master of the northern and southern shores of the Persian Gulf and the establishment of the political institutions and the population is on the bank of the waterway. Looking for a new Arab-Muslim onslaught, the Sassanid government policies on these pages, torn by political and economic confusion in this area by the end of the Umayyad era(41-132 AH) Continud.With the rise of the Abbasids(132AH) and Favorite Baghdad as the center of government, an important part of economic and political trends former renovated. Persians and Arabs from the Persian Gulf to the Indian Ocean and Chinas trade development. But during the second Abbasid period to the extent that the Socio-Political conflicts, especially in the religious riots took Place, the situation had ex back. With the advent of boys Aboshoja, buoy era of revival of Iranian Culture and civilization under the rule of the dynasty began tolerant and Iran Circuit. Establishment of coastal and offshore areas Buwayhid Centers and the Persian Gulf, where until a few Centuries ago, the Sassanids were established,the Possibility of trade-economic reconstruction of the former and the development of maritime trade in the Persian Gulf Waterway Provided. Kings dominate Irag and Baghdad in Particular on the Possibility of further facilitated. Thus, many harbos and coastal and offshore areas south of the development of trade and politics clever Buwayhid, especially in the age azzad doleh were developed and have reached a considerable hom.