The utility model discloses a multifunctional sugarcane machine. The multifunctional sugarcane machine comprises a machine frame and a juicing mechanism, wherein the juicing mechanism is installed inside the machine frame, and the juicing mechanism comprises a main shaft. The multifunctional sugarcane machine further comprises a spiral feeding mechanism, a peeling mechanism and a bar cutting knife, wherein the spiral feeding mechanism, the peeling mechanism and the bar cutting knife are installed inside the machine frame. The spiral feeding mechanism comprises driving shafts and driven shafts which are arranged inside the machine frame side by side and are in transmission connection through gears. The peeling mechanism comprises a positioning plate, a plurality of stretchy rods which are installed on the positioning plate and a plurality of arc-shaped peelers. The driving shafts and the driven shafts are provided with mutually corresponding thread structures in which sloping grains and straight grains are connected. The positioning plate is installed on the machine frame at the rear end of the spiral feeding mechanism, and the arc-shaped peelers are arranged on the corresponding stretchy rods in a mutually staggered mode to be combined into a ring structure. The bar cutting knife is installed at the rear ends of the driving shafts and can rotate along with the driving shafts, and the driving shafts are connected with one end of the main shaft through a coupler. By means of the multifunctional sugarcane machine, sugarcane peeling and bar cutting can be achieved, and sugarcane juicing can also be achieved according to the choices of customers.