A GOA circuit for an LCD includes GOA units connected in cascade and the plurality of GOA units at stages formed. The GOA unit at an nth stage corresponds to a scan line. The scan line includes a nth scan line, a (n+1)th scan line, and a (n+2)th scan line. The GOA unit at the an nth stage includes a first pull-down holding circuit, a pull-up circuit, a bootstrap capacitance circuit, a pull-down circuit, and a clock circuit. The improved GOA circuit at one stage corresponds to the output of three gate lines. So a number of the stages of the GOA circuit is reduced. Only ⅓ stage of the conventional GOA circuit is needed. Because of the decrease in the number of the stages, more flexibility of design is given to the GOA circuit at each stage. It is beneficiary for the design in narrow bezels.