Driving methods for cholesteric liquid crystal display devices are provided. The driving method includes providing a cholesteric liquid crystal display, wherein the capacitance detector corresponds to a driving module; outputting a capacitance sensing voltage waveform from the driving module to the cholesteric liquid crystal display panel such that a capacitance value of the cholesteric liquid crystal layer is acquired and stored in the memory; and when the capacitance value falls in a capacitance range of a second displaying state, the capacitance detector outputs a second sensing result, and when the capacitance value falls in a capacitance range of a first displaying state, the capacitance detector outputs a first sensing result.