A purpose of this study is to analyse Alain Badiou`s true theory and to get it`s educational implications. Badiou is against this philosophical circumstances which have became relativismization, and have been trying to rebuild a authentic philosophy which based on true theory which guarantee the universality. For Badiou, the true making process is ``situation - involvement (naming) - event - fidelity(inquiring) - true``. The ``situation`` refers to a world filled with multiple elements which include formal elements and informal elements like void. The ``involvement`` refers to putting a name to informal elements like void, and binding together the elements under the name. The ``event`` is a finding of/with the involvement. the ``fidelity`` is to unremittedly, sincerely inquire the event, and the ``inquire`` refers to compare the elements on the event with the old elements in the situation. The ``true`` refer to a result of/with the fidelity. According to Badiou` true theory, the essence of education is actions which focus on educational weak elements such as low academic achievement students, non-authentic information, and which give fidelity to the event/truth based on the weak elements. The educated person is one who to devote him/herself to the educational weak element, and give the fidelity to the event/truth. The curriculum consists of not only authentic knowledges but also non-authentic informations, opinions as the educational weak elements.