Piercing device capable of adjusting distance and depth

The utility model discloses a hole pricking device capable of adjusting spacing and depth, and belongs to the field of agricultural planting auxiliary equipment. Comprising a chassis, a rotating disc, a plurality of connecting pieces and a plurality of pricking needles, a handle is arranged on the upper end face of the base plate, a plurality of sliding grooves are formed in the base plate, the rotating disc is rotationally arranged in the middle of the base plate in a lockable mode, and the sliding grooves are evenly distributed around the rotating center of the rotating disc in a radiation mode. A plurality of sliding grooves are formed in the rotating disc, a hole pricking needle is arranged in each sliding groove in a sliding mode, the connecting pieces are evenly distributed around the rotating center of the rotating disc, each hole pricking needle is connected with the periphery of the rotating disc through one connecting piece, one end of each connecting piece is rotationally connected with the periphe