This study analyzed Turkey's possible membership of the Shanghai Cooperation Organization (SCO) and also examined the causes of the SCO and the political polarization of the world in those years. In the study, while the advantages and disadvantages of Turkey's possible membership of the SCO have been discussed, the study has also tried to explain the political and economic needs that should be done on behalf of Turkey in order to gain profit from this membership. Turkey's trade relations with SCO members were analyzed one by one in this context. And also, it has been determined how Turkey should conduct its relations with the states that are in Eurasia and members of SCO. The finding of the study results is that the development of Turkey's relations with the Turkish Republics in a positive or negative direction is oriented parallel to the faces reflected in the Turkey-SCO relationship. Thus, If Turkey strengthens its political, economic and cultural activities with Turkish Republics, it can increase its effectiveness in the SCO and especially in the Eurasian region in terms of both geopolitical and geostrategic. While Turkey develops its relations with any organizations in East-West block, it should consider one and the other as an alternative and / or competitor. As a result, socio-economic and socio-cultural integration of Turkey with Turkish Republics in the SCO urgently needs to be strengthened in order to reach Turkey‟s relations with SCO to a higher level.