Shifting register and driving method thereof, scanning driving circuit and display panel

The invention discloses a shifting register and a driving method thereof, a scanning driving circuit and a display panel, the shifting register comprises a first input module, a second input module, an interlocking module, a first output module and a second output module, the first input module transmits a first level to a first node under the control of a signal accessed from an input end, and the second input module transmits a second level to a second node under the control of a signal accessed from the input end; the second input module transmits a second level to the second node under the control of a signal accessed by the input end and a clock signal accessed by the first clock signal end, and the interlocking module responds to the level of one of the first node and the second node and controls the level of the other node. The first output module responds to the first level of the first node and transmits the level of a clock signal accessed by the second clock signal end to the output end, and the se