Automatic navigation method and automatic navigation system

An automatic navigation system, comprising:

• a path planning unit used for providing a guiding path;
• an electronic compass used for obtaining a current facing direction which a user faces;
• a processing unit used for obtaining a turning direction according to the current facing direction and the guiding path;
• an electric shock unit used for emitting an electric shock signal to notify the user the turning direction;
• and
• a sensing unit used for sensing a radio-frequency identification (RFID) tag to obtain a nearest trace point of the guiding path, wherein the processing unit further updates the turning direction according to the nearest trace point and the current facing direction;
• wherein the electric shock signal is directed towards left turn or right turn by providing a combination of at least one short-duration signal and at least one long-duration signal.