A lateral pin extraction tool for extracting a lateral pin fitted into respective lateral holes penetrating a plurality of adapters and a plurality of points, respectively, in a working machine bucket, comprising: an extraction butting element, the distal end thereof being butted against the end part of the lateral pin fitted into the lateral hole while, under the striking force, being inserted into the lateral hole for extracting the lateral pin fitted into the lateral hole; and a striking block element integrally provided at the proximal end of the extraction butting element for receiving the striking force to transmit it to the extraction butting element; and a shank element for grip equipped with a slip prevention part integrally mounted to the striking block element, the protrusion length of the extraction butting element from the striking block element being set at any length of extra long, long, medium, and short.