Provided are a display panel and a driving method thereof. The display panel includes an array substrate, the display panel including a display region and a peripheral region. In the peripheral region, a common voltage wiring, a voltage feedback wiring, a periodic signal wiring, and a decoupling wiring are disposed on the array substrate at intervals; the common voltage wiring is configured to transmit a common voltage signal for display to a pixel array in the display region, the voltage feedback wiring is configured to transmit a voltage feedback signal for monitoring changes in the common voltage signal, the periodic signal wiring is configured to provide the pixel array with a periodic signal for display, the decoupling wiring is located between the periodic signal wiring and the voltage feedback wiring, and is configured to transmit a decoupling signal for reducing coupling distortion of the voltage feedback signal.