According to the present time, cassavas’ price has been rising so much that a lot of farmers start growing cassavas. There are two ways of selling cassavas. The first way is to sell fresh cassava, and the way that farmers do is that they have to dig cassavas and bring them to the market directly, and this way is not quite good for making a profit. The other way is to dry cassavas first then farmers can sell them, and this way can make much more profits for farmers than the previous way. Moreover, we notice that the way that farmers cut cassavas is not convenient for them because they use only a knife which is quite dangerous to them, and also it wastes of times. Therefore, we are interested in making cutting machine for cassavas, and it might be able to help farmers a lot.