A display panel (92), and gate drive circuit (10) thereof. The gate drive circuit (10) comprises multiple stages of gate drive units (11), and each stage of gate drive unit (11) comprises: a first pull control unit (111) used to output a first pull control signal at a first node (Qn); a first pull unit (112) generating, according to the first pull control signal and a first clock signal (CK), a gate drive signal (Gn); a second pull control unit (113) outputting, according to a first signal, a second signal, a third signal, and a fourth signal, a second pull control signal; and a second pull unit (114) pulling, according to the second pull control signal, the voltage level of the first node (Qn) and the voltage level of an output end of the gate drive signal. The frequency of the second pull control signal is smaller than the frequency of the first clock signal (CK), and greater than a refresh frequency of the display panel (92). The gate drive circuit (10) of the present invention can effectively prevent a property drift of a thin-film transistor of the gate drive unit (11), thus improving reliability of the gate drive unit (11).