Ground leveling performance improving device of digger

The utility model relates to a ground leveling performance improving device of a digger, which comprises an engine, a right pump, a left pump, an overflow valve, a control pump, a check valve, a movable arm II control valve, a movable arm I control valve, a bucket arm I control valve, a bucket arm II control valve, movable arm handles, bucket arm handles and oil ways, wherein bucket arm oil ways connected with the bucket arm handles are divided into two ways, and one way is connected with a left pilot cavity of the bucket arm I control valve and a pilot cavity of a hydraulic control valve through the oil way, or directly connected with the left pilot cavity of the bucket arm I control valve through the oil way; and movable arm oil ways connected with the movable arm handles are divided into two ways, and one way is connected with a right pilot cavity of the movable arm II control valve through the hydraulic control valve or a second electromagnetic valve. According to the ground leveling performance improving