The invention relates to an excavator gear shifting handle automatic operation device. The device comprises a base, a first driving unit, a second driving unit, a first lead screw, a second lead screw, a first translation base slidingly connected to the base, and a second translation base; a first chute and a second chute are respectively formed in the first translation base and the second translation base; the two translation bases are vertically crossed; the first chute and the second chute are vertically crossed and overlapped up and down; a handle of a excavator gearbox gear shifting valvepenetrates through the crossed and overlapped part of the first chute and the second chute; the first driving unit and the second driving unit are in transmission connection with the first lead screwand the second lead screw; the first lead screw and the second lead screw are spirally connected to the first translation base and the second translation base; when the first driving unit drives thefirst translation base to move, the handle slides in the second chute; and when the second driving unit drives a second push plate to move, the handle slides in the first chute. The device has the advantage of capability of improving automatic operation of a traditional excavator with low cost.