The invention discloses a disassembly and assembly component structure of an oil cylinder bucket tool. The disassembly and assembly component structure of the oil cylinder bucket tool comprises a first oil cylinder, a first connecting set body, a U-shaped opening, a second oil cylinder, a second connecting component, an installing hole, a hinge joint, a wall plate, a connector, the bucket tool, a movable arm, a first pin, a connecting rod, a second hinge pin, a third hinge pin, a fourth hinge pin and a fifth hinge pin. The disassembly and assembly component structure of the oil cylinder bucket tool is characterized in that the first oil cylinder is hinged to the second connecting component through the hinge joint, the wall plate is arranged between two connecting plates of the first connecting set body for separation, the first connecting set body is provided with the installing hole, the second oil cylinder is connected with the U-shaped opening, the first connecting set body is hinged to the connecting rod through the second hinge pin, the connecting rod is hinged to the movable arm through the first pin, the second oil cylinder is hinged to the second connecting component through the third hinge pin, and the second connecting component and the U-shaped opening are hinged to the second connecting component through the third hinge pin. An excavator bucket and an accessory tool can be fast disassembled and assembled, deflection of the excavator bucket and the accessory tool can be controlled easily, and the disassembly and assembly component structure has the advantages of being efficient, safe, reliable, convenient to use and practical.