The invention discloses a method for processing a steel plane hoe, which belongs to the technical field of agricultural machinery. The production technology of the steel plane hoe comprises the following steps of: using a 45# medium carbon steel billet, mechanically rolling a square steel into a flat steel, and adding a blank forming material; heating the blank forming material to 1200 degrees centigrade, mechanically rolling into a convex blank hoe plate material; using a punch die to punch the convex blank hoe plate material into a hoe plate with a steel plane hoe shape, and marking; using a friction pressure machine to press the hoe plate into an arc shape and to press out a triangular reinforced rib on the hoe plate; using the pressure machine to roll up a hoe cage, and bending the hoe cage to form the steel plane hoe; quenching by a chemical solution until the hardness reaches 45-50HRC; and polishing, painting, drying and packaging the steel plane hoe to obtain the steel plane hoe as a finished product. The method provided by the invention has the advantages of few working procedures, high automation level of production, durability, fuel source economy, beautiful appearance, few smoke wastes and less noise pollution, and is particularly suitable for industrial production.