The invention discloses a driving circuit device and a backlight module. A luminescent component is driven by the driving circuit device, wherein, the light emitting component is provided with at least one electrode lead. The driving circuit device comprises a circuit substrate and a transformer, wherein, the transformer is arranged on the circuit substrate and a clamping part is arranged at one side of the transformer. The clamping part and the transformer are connected electrically, and the electrode lead is clamped by the clamping part.