The sawdust carbonization production line is a device that transports the dry material after crushing and drying of wood or wood chips to the carbonization machine, and performs dry distillation and oxygen-free carbonization under high temperature conditions, and has high carbon production. The finished charcoal can be added with feces as charcoal-based fertilizer for soil improvement, and can also be made into various shapes of carbon rods or balls to meet different needs of the market.