This study seeks answers to questions like: Does debate education help students build up their personality? and has students` learning ability improved through debate education? To investigate the answers I refer to the debate classics Socrates and Popper`s literature and I draw three essential principles that consist debate education. First one is ‘Admitting to one`s ignorance’ which is related to Socrates ‘Eironeia’ and the Popper`s ‘fallibility of human reason(Possible Error of Reason)’. It gives explanations about starting point of debate education and the relationships of teacher and students as well as among peer group`s communication. Second is ‘Arguing through competitions which is related to Socrates`s ‘Elenchus’ and Popper`s ‘Falsifiability’ and It can be interpreted in Greek word ‘Agon’ that means non-hostile competition. Last one is ‘Getting forward to new exploration which is related to Socrates`s ‘Aporia’ and Popper`s ‘Nondeterminism’. It supports the necessity of continuous and permanent inquiring mind to the truth.