To provide a bi-directional education system capable of giving not only knowledge but also 'self-thinking power' to students, and further adjusting supply and demand for education.

The bi-directional education system 1 connects plural entrepreneurs' terminals 2 with students' terminals 3 via a computer network, and permits to bi-directionally communicate between the education entrepreneurs' terminals 2 and the students' terminals 3, or between students' terminals 3 in real time, and allows the students to select and study a specific subject from plural subjects supplied by the education entrepreneurs and also allows them to have their scholastic ability approved by the education entrepreneurs who taught the subjects taken by the students.