The invention discloses a dough kneading device for processing of flour. The dough kneading device comprises a bottom plate, a dough kneading frame, a mounting frame, a placing tray, a rotating shaft,a driven grooved pulley, a driving plate, a first motor, a second motor, a disk, a first connecting rod, a moving rod, a first dough kneading ball, a second connecting rod, L-shaped rods and second dough kneading balls. The dough kneading device disclosed by the invention is easy to operate, convenient and practical; through cooperation, dough on the placing tray is kneaded downwards by the firstdough kneading ball; then the second dough kneading balls move to the middle part of the dough kneading frame to knead the dough from periphery; besides, the dough can be gathered to the middle, so that the dough is sufficiently kneaded, and fermentation of the dough is more facilitated; the automation degree is high, so that the labor intensity of workers is relieved; and besides, the driving plate is driven by the first motor to rotate, and the driven grooved pulley is driven by the driving plate to rotate in an intermittent manner, so that the situation that the second dough kneading ballscan perform kneading on different locations of the dough every time; and the dough kneading is more sufficient and uniform, the dough kneading speed is increased, and the working efficiency is improved.