Provided are a gate line driving circuit, a circuit for outputting an emission control signal, and a display device, the problem that existing gate line driving circuit can output a synchronous driving signal is solved. The gate line driving circuit comprises a power input pin configured to input an effective voltage (VGH) for controlling a switching transistor in a pixel region to be turned off, the power input pin inputs the effective voltage (VGH) in a display phase, and inputs a synchronous driving signal in a touch phase.