A driving device for a vehicle window roller blind and a method for the use thereof, the device comprising a fixed frame part (8) fixed on a vehicle body (88) and a roller blind component (9) pivotally rotatable relative to the fixed frame part (8); the roller blind component (9) comprises a roller blind scroll (81) used for fixedly connecting to an upper end of a roller blind (92) and capable of winding the roller blind (92), driving shaft type gears (91) that are symmetrically and coaxially arranged on front and rear sides of the roller blind scroll (81) and a biasing pivot wheel (94) fixedly connected to a lower end of the roller blind by means of a flexible traction cable, the biasing pivot wheel (94) being biased by a pivoting biasing spring so as to tension the roller blind (92) downwards; and two rack driving components, which are symmetrically positioned on the front and rear sides of the roller blind scroll (81), are arranged in the fixed frame part (8).
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