The invention discloses a gate drive circuit, a display device and a drive method. The gate drive circuit comprises a scanning signal generation circuit which comprises N stages of first output ends and is configured to output first pulse scanning signals at the N stages of first output ends stage by stage according to a preset period; N levels of level conversion circuits which are in one-to-onecorrespondence with the N levels of first output ends, wherein each level conversion circuit comprises a first control end, a second control end and a second output end and is configured to output a second pulse scanning signal under the control of first pulse scanning signals received by the first control end and the second control end, the first control end of the m-th level conversion circuit is electrically connected to the m-th first output end of the scanning signal generation circuit to receive a first pulse scanning signal, N is an integer greater than or equal to 2, and m is an integer greater than or equal to 1 and less than or equal to N. The gate drive circuit can realize level conversion of the gate scanning signal, thereby meeting the voltage requirement of the display paneland improving the display quality.