An automatic free-form tablet dispenser in a medicine packing machine and a method for supplying a tablet are provided. The automatic free-form tablet dispenser in a medicine packing machine, which provides tablets input from the outside to a hopper of the medicine packing machine by a predetermined quantity, includes a main body having a guide track through which the tablet received inside the main body transfers, a driving unit making the tablet transfer along the guide track, an entrance detection sensor detecting whether the tablet is proceeding to the entrance of the guide track or not, an arrival detection sensor detecting whether the tablet reaches to the exit of the guide track or not, and a control unit determining whether the arrival detection sensor detects the tablet within a predetermined time after the entrance detection sensor has detected the tablet.
