The present application discloses a driving circuit and a touch display device. The driving circuit includes a timing control circuit for providing a frame synchronization signal, wherein each cycle of the frame synchronization signal includes a plurality of sub-intervals, and each sub-interval includes a display interval and a touch interval; a gate driving circuit for outputting an effective gate driving signal in the display interval, wherein the gate driving signal is used for controlling a pixel electrode; and a touch detection circuit for performing touch detection within each touch interval. By means of the method of dividing the display frame in each cycle of the frame synchronization signal into a plurality of display intervals and touch intervals, the touch detection circuit canperform touch detection many times on the touch display panel when the touch display panel displays the picture of each frame, so as to achieve the purpose of improving the reporting frequency of thetouch display device.