Display panel, driving method thereof and display device

The invention provides a display panel, a driving method thereof and a display device. The display panel comprises a touch display integrated circuit, a first power supply and a second power supply, the touch display integrated circuit comprises an analog driving circuit, and the analog driving circuit comprises a touch driving circuit and a display driving circuit; the first power supply is electrically connected with the touch driving circuit and the display driving circuit and is configured to supply power to the touch driving circuit and the display driving circuit; the second power supply is electrically connected with the display driving circuit and is configured to provide power for the display driving circuit; the second power supply is further electrically connected with the touch drive circuit and is further configured to provide power for the touch drive circuit. According to the display panel, the size of the touch display integrated circuit is reduced, and the cost of the touch display integrated circuit is reduced.