A supporting mechanism and a sorting machine having the same are provided. The supporting mechanism includes a supporting body. An annular sliding slot is formed on a section of surface of the supporting body. A U-shaped clamping slot is provided in a ring of the annular sliding slot. A one-way deflecting locating valve plate is provided at the position of an opening of the U-shaped clamping slot and configured to close the annular sliding slot, and the locating valve plate is provided with a reset force configured to ensure a tendency of the locating valve plate to close the annular sliding slot. A deflecting angle of the locating valve plate ensures that a free end of the locating valve plate deflects from one side to another side of the opening of the U-shaped clamping slot. The supporting mechanism has a simple operation and a high efficiency.
