The invention provides a voltage driving method for a display panel and a device. According to the voltage driving method, within a touch control frame time period, a public electrode is complexed indifferent periods to supply a scanning voltage to different touch control electrodes of a display panel, in addition, the scanning voltage is applied to two rows of touch control electrodes on the outermost side of the display panel in a first period, and the scanning voltage applied to the two rows of the touch control electrodes on the outermost side is adjusted as a reference voltage within a first period of a next touch control frame, so that closed loop control on scanning voltages applied to the two rows of the touch control electrodes on the outermost side of the display panel is achieved, output voltages of the two rows of the touch control electrodes on the outermost side can be adjusted to be accordant with the reference voltage in a next frame, stray capacitance can be preventedat the periphery of the display panel, peripheral voltages of the display panel can be stabilized, and the touch control properties can be improved.