An extruding device including a body, a first gear, a second gear and a control module is provided. The body has an inlet and an outlet, wherein the inlet is above the outlet. The first gear and the second gear engaging with each other are both disposed in the body. The control module is assembled with the first gear, so as to drive the first gear to rotate.一種輾料裝置,包括盒體、主動輾料齒輪、從動輾料齒輪以及控制模組。盒體具有種子投入口以及種子取出口,其中所述種子投入口位於所述種子取出口的上方。主動輾料齒輪及從動輾料齒輪皆設置於所述盒體內,且所述從動輾料齒輪並與所述主動輾料齒輪嚙合。控制模組與所述主動輾料齒輪結合,以驅動所述主動輾料齒輪轉動。200‧‧‧輾料裝置210‧‧‧盒體212‧‧‧種子投入口214‧‧‧種子取出口220‧‧‧主動輾料齒輪222‧‧‧軸心孔230‧‧‧從動輾料齒輪280‧‧‧置料收集盒