The invention discloses a fully-automatic green brick stacking machine. The fully-automatic green brick stacking machine comprises a driving device, a controller, a green brick stacking machine body,a green brick clamping device and a rotating device, wherein the green brick clamping device and the rotating device are arranged on the green brick stacking machine body. The green brick clamping device is provided with a chuck. The controller is internally provided with a speed adjustment device, a locating device, a waste green brick identification device and a waste green brick sorting device,wherein finished product quality identification is conducted on sintered finished bricks through the waste green brick identification device, and the waste green brick sorting device is connected with the waste green brick identification device and used for sorting waste green bricks. The speed adjustment device comprises a transverse speed adjustment device body, a longitudinal speed adjustmentdevice body and a rotation speed adjustment device body, wherein the transverse speed adjustment device body is used for adjusting the transverse movement speed of the chuck; the longitudinal speed adjustment device body is used for adjusting the longitudinal movement speed of the chuck; and the rotation speed adjustment device body is used for adjusting the rotation speed of a rotating device. The locating device comprises a transverse locating device body, a longitudinal locating device body and a special-shape locating device body, wherein the transverse locating device body conducts confirmation on the positions where the transverse green bricks are located; the longitudinal locating device body conducts conformation on the positions where the longitudinal green bricks are located; andthe special-shape locating device body conducts position confirmation on the special-shaped green bricks. The fully-automatic green brick stacking machine is high in locating precision and good in operation stability, and green brick stacking quality and efficiency are effectively improved.