A laundry processing apparatus comprising: an outer tub which accommodates washing water therein; an inner tub which is disposed inside the outer tub and contains laundry therein; a pulsator which is provided in a lower portion of the inner tub; a blade which is provided below the pulsator; a driving motor which is disposed outside the outer tub and rotates a washing shaft; a pulsator connecting shaft which rotates the pulsator, and is disposed to penetrate a lower side surface of the outer tub; a blade connecting shaft which rotates the blade, and is disposed to penetrate the lower side surface of the outer tub; and a gear module which is disposed outside the outer tub, and transmits a rotational force of the washing shaft to the pulsator connecting shaft and the blade connecting shaft respectively, characterized in that the gear module comprises: a first sun gear to which an upper portion of the washing shaft is fixed; a second sun gear to which a lower portion of the blade connecting shaft is fixed; a plurality of first planetary gears which are engaged and rotated with an outer circumferential surface of the first sun gear; a plurality of second planetary gears which are engaged and rotated with an outer circumferential surface of the second sun gear; a carrier which has the plurality of first planetary gear rotation shafts (144a1) that penetrate a central portion of the plurality of first planetary gears respectively, and has the plurality of second planetary gear rotation shafts (144a2) that penetrate a central portion of the plurality of second planetary gears (143-1,143-2) respectively such that the plurality of first planetary gear rotation shafts (144a1) and the plurality of second planetary gear rotation shafts (144a2) are connected to each other; and a ring gear which is internally in contact with and engaged with the plurality of first planetary gears and the plurality of second planetary gears simultaneously. an outer tub which accommodates washing water therein; an inner tub which is disposed inside the outer tub and contains laundry therein; a pulsator which is provided in a lower portion of the inner tub; a blade which is provided below the pulsator; a driving motor which is disposed outside the outer tub and rotates a washing shaft; a pulsator connecting shaft which rotates the pulsator, and is disposed to penetrate a lower side surface of the outer tub; a blade connecting shaft which rotates the blade, and is disposed to penetrate the lower side surface of the outer tub; and a gear module which is disposed outside the outer tub, and transmits a rotational force of the washing shaft to the pulsator connecting shaft and the blade connecting shaft respectively, characterized in that the gear module comprises: a first sun gear to which an upper portion of the washing shaft is fixed; a second sun gear to which a lower portion of the blade connecting shaft is fixed; a plurality of first planetary gears which are engaged and rotated with an outer circumferential surface of the first sun gear; a plurality of second planetary gears which are engaged and rotated with an outer circumferential surface of the second sun gear; a carrier which has the plurality of first planetary gear rotation shafts (144a1) that penetrate a central portion of the plurality of first planetary gears respectively, and has the plurality of second planetary gear rotation shafts (144a2) that penetrate a central portion of the plurality of second planetary gears (143-1,143-2) respectively such that the plurality of first planetary gear rotation shafts (144a1) and the plurality of second planetary gear rotation shafts (144a2) are connected to each other; and a ring gear which is internally in contact with and engaged with the plurality of first planetary gears and the plurality of second planetary gears simultaneously.