This article discusses the political and commercial relations between Iran and Soviet Union and the role Abdol-Hossein Teimurtash - the Minister in the Court of Reza Shah- did play in them. For that purpose, the article consults many pages of the records of Special Royal Office of Reza Shah, US National Archive in Maryland and British Records of National Archive. These records discuss, in a historical process, the reasons behind the overthrow of Teimurtash in later years and present a new narration of the issue. The article’s main focus is on the role of Teimurtash in establishing a political balance between Iran’s foreign relations with UK, USSR and Germany. It also introduces those who opposed to him both inside Iran and describes the effect of these oppositions in his fate.