Sustained arms supplies are the base of the every party in Syrian Civil War to retain and enhance the battle effectiveness. This paper mainly analyzes the weapons sources of Syrian government and the oppositions. Because the different channels to get the weapons sources reflected the differences in policy objectives of external countries towards Syria，the complex relationships are the important source of the protracted Syrian Crisis. Therefore，compared with other observation perspectives by analyzing the weapons sources of all parties in Syrian Civil War，we can more intuitively understand the Middle East Strategy of relevant countries；this is also the purpose of this paper.