A cooking device comprising: a cooking chamber configured to provide a space in which food is cooked; a tray located at a bottom surface of the cooking chamber, and connected to a drive member generating rotational force; and an agitating cooking assembly (100, 200, 1100) supported by the tray and rotatable with the tray, wherein the agitating cooking assembly (100, 200, 1100) includes: a cooking container (110, 210, 1110) configured to store food therein; an agitating member (120, 160, 1120) configured to agitate the food while simultaneously relatively rotating in the cooking container (110, 1110) with respect to the cooking container (110, 1110) and comprising a supporter (127, 1127); and characterized in that a stopper having a seating part is installed at one sidewall of the cooking chamber, the seating part including one open side and an inner space corresponding to the supporter (127, 1127), wherein the stopper is located at a rotation path of the supporter (127, 1127) in a manner that the supporter (127, 1127) moves through the open side in the seating part to the inner space of the seating part while rotating with respect to the cooking chamber and the rotation of the supporter (127, 1127) is limited by the stopper so that the agitating member (120, 160, 1120) relatively rotates with respect to the cooking container (110, 210, 1110). a cooking chamber configured to provide a space in which food is cooked; a tray located at a bottom surface of the cooking chamber, and connected to a drive member generating rotational force; and an agitating cooking assembly (100, 200, 1100) supported by the tray and rotatable with the tray, wherein the agitating cooking assembly (100, 200, 1100) includes: a cooking container (110, 210, 1110) configured to store food therein; an agitating member (120, 160, 1120) configured to agitate the food while simultaneously relatively rotating in the cooking container (110, 1110) with respect to the cooking container (110, 1110) and comprising a supporter (127, 1127); and characterized in that a stopper having a seating part is installed at one sidewall of the cooking chamber, the seating part including one open side and an inner space corresponding to the supporter (127, 1127), wherein the stopper is located at a rotation path of the supporter (127, 1127) in a manner that the supporter (127, 1127) moves through the open side in the seating part to the inner space of the seating part while rotating with respect to the cooking chamber and the rotation of the supporter (127, 1127) is limited by the stopper so that the agitating member (120, 160, 1120) relatively rotates with respect to the cooking container (110, 210, 1110). a cooking container (110, 210, 1110) configured to store food therein; an agitating member (120, 160, 1120) configured to agitate the food while simultaneously relatively rotating in the cooking container (110, 1110) with respect to the cooking container (110, 1110) and comprising a supporter (127, 1127); and characterized in that a stopper having a seating part is installed at one sidewall of the cooking chamber, the seating part including one open side and an inner space corresponding to the supporter (127, 1127), wherein the stopper is located at a rotation path of the supporter (127, 1127) in a manner that the supporter (127, 1127) moves through the open side in the seating part to the inner space of the seating part while rotating with respect to the cooking chamber and the rotation of the supporter (127, 1127) is limited by the stopper so that the agitating member (120, 160, 1120) relatively rotates with respect to the cooking container (110, 210, 1110).