A dual-voltage electronic cigarette control assembly, comprising a casing (4) of the control assembly, a control circuit board (2), and a key switch (3), wherein the control circuit board (2) is fixed into the casing by a fixing unit, and the key switch is electrically connected to the control circuit board. The control circuit board (2) is provided with a power managing module configured for outputting a high preset voltage or a low preset voltage and the power managing module comprises a boost (step-up) unit, a buck (step-down) unit or a buck-boost unit. The dual-voltage electronic cigarette control assembly of the present invention can help users to enjoy different vapor amounts according to their personal preference and enhances the power efficiency.