The invention discloses a dough kneading machine, including a main body on which a dough kneading component is mounted; the dough kneading component comprises a dough kneading bowl with a cover, in which a dough kneading drive shaft is set passing through a mounting hole on the bottom of the bowl and connecting to the main body at the lower end; a bidirectional dough kneading hook with a center shaft is mounted on the upper end of the dough kneading drive shaft; a first dough kneading hook and a second dough kneading hook with asymmetric structure are oppositely set on the center shaft and a center scraper is connected to the bottom of the center shaft. The dough kneading machine effectively ensures the stationarity during rotation operation of food processing, and the efficiency is two times as fast as that of unidirectional dough kneading hook.