The invention provides a shifting register and a driving method thereof, a gate drive circuit and a display device. A shifting register unit comprises a pull-up node control unit, a pull-down control node control unit, a pull-down node control unit, a gate drive signal output unit and a carry signal output unit, wherein the pull-down control node control unit is connected with the output end of a first level; when the electric potential of a pull-up node is in a first electric level, the electric potential of a pull-down control node is controlled to be a second electric level; when the electric potential of the pull-up node is a third electric level, the pull-down control node is controlled to be connected with the output end of the first electric level; the carry signal output unit is used for controlling a carry signal output end to output a carry signal under the control of the pull-up node and the pull-down node; and the output end of the carry signal provides an input signal for an adjacent shifting register unit at the next level. The shifting register can perform electric discharge to the pull-up node in a non-output phase, can decrease noise and also can reduce power dissipation and size, so as to meet the requirements of low-power-dissipation narrow bezel products.