A wood screw structure, comprising: a screw head section, a rod section, a first screw thread, and at least one crushing rib unit; the screw head section including a top portion and a neck portion extending from the top portion and tapering toward a direction opposite to the top portion; the rod section, integrally formed from the neck portion of the screw head section, the rod section including a first rod portion connecting the neck portion, a second rod portion, a third rod portion, and a tapered portion extending and tapering outwardly from the third rod portion, wherein the second rod portion is disposed between the first rod portion and the third rod portion, and the third rod portion is disposed between the second rod portion and the tapered portion; the first screw thread disposed spirally and is protruded on an outer peripheral surface of the tapered portion, the second rod portion and the third rod portion; the at least one crushing rib unit disposed spirally and protruded around the outer peripheral surface of the third rod portion and the tapered portion, each crushing rib unit being crisscrossed with the first screw thread to form an included angle, wherein each crushing rib unit includes a rib body and a plurality of crushers protrudingly disposed on the rib body, wherein a first discharge gap is formed between the plurality of crushers, and wherein an outer diameter of the plurality of crushers is smaller than a screw diameter of the first screw thread, and greater than a rod diameter of the third rod portion; characterized in that each rib body forms a first side and a second side at joints with the outer peripheral surface of the third rod portion and the tapered portion, and the first screw thread forms a third side and a fourth side at joints with the outer peripheral surface of the second rod portion, the third rod portion and the tapered portion, wherein the first side crisscrosses with the third side at the outer peripheral surface of the third rod portion to form a first included angle (a), an angle of the first included angle (a) is in a range from 40 and 70 degrees, wherein the first side crisscrosses with the third side at the outer peripheral surface of the tapered portion to form a third included angle (c), an angle of the third included angle is in a range from 50 and 70 degrees, and wherein a degree of the first included angle (a) is different from a degree of the third included angle (c). a screw head section, a rod section, a first screw thread, and at least one crushing rib unit; the screw head section including a top portion and a neck portion extending from the top portion and tapering toward a direction opposite to the top portion; the rod section, integrally formed from the neck portion of the screw head section, the rod section including a first rod portion connecting the neck portion, a second rod portion, a third rod portion, and a tapered portion extending and tapering outwardly from the third rod portion, wherein the second rod portion is disposed between the first rod portion and the third rod portion, and the third rod portion is disposed between the second rod portion and the tapered portion; the first screw thread disposed spirally and is protruded on an outer peripheral surface of the tapered portion, the second rod portion and the third rod portion; the at least one crushing rib unit disposed spirally and protruded around the outer peripheral surface of the third rod portion and the tapered portion, each crushing rib unit being crisscrossed with the first screw thread to form an included angle, wherein each crushing rib unit includes a rib body and a plurality of crushers protrudingly disposed on the rib body, wherein a first discharge gap is formed between the plurality of crushers, and wherein an outer diameter of the plurality of crushers is smaller than a screw diameter of the first screw thread, and greater than a rod diameter of the third rod portion; characterized in that each rib body forms a first side and a second side at joints with the outer peripheral surface of the third rod portion and the tapered portion, and the first screw thread forms a third side and a fourth side at joints with the outer peripheral surface of the second rod portion, the third rod portion and the tapered portion, wherein the first side crisscrosses with the third side at the outer peripheral surface of the third rod portion to form a first included angle (a), an angle of the first included angle (a) is in a range from 40 and 70 degrees, wherein the first side crisscrosses with the third side at the outer peripheral surface of the tapered portion to form a third included angle (c), an angle of the third included angle is in a range from 50 and 70 degrees, and wherein a degree of the first included angle (a) is different from a degree of the third included angle (c).