This paper stresses an importance of the professional disputation, being initiated by the Department of Mechanical Engineering, Monash University in Australia. It explains the history of the subject, aims and procedure in a logical order, so that any individual or any institution can take advantage of this unique and extremely useful intellectual training system to equip researchers, students and/or businessmen with powerful oral and written skills in presentation of their thesis or proposition. The professional disputation is synthetic and systematic research training system or a game which has been elaborated by well-trained scholars upon the past human intellectual history.