Abstract: This article discusses Dorgon’s assumption of control of the Pure White Banner in 1636. Dorgon took control of the Pure White Banner from Duoze, it’s original leader, by forcibly seizing control of fifteen of Duoze’s Niru. Afterwards he exchanged control of the Bordered White Banner for control of the Pure White Banner with Duoze. Dorgon’s position as a banner leader was strengthened and his prestige also increased. Dorgon thereby created the conditions to surpass Jierhalong to become the chief minister and personally assume control of all affairs of state.