This article tries to describe the concept of “toleration” and the discussion of the things related to the concept. Basically there are three main ideas of the concept of toleration. Firstly, it tries to explain the meaning of the word “toleration” and suggests that it is a basis of the value in the implementation of democracy. Secondly, it will discuss the cases related to the toleration. Finally, this article will discuss about the duty of lecturer and teacher personally in teaching their students in order that they understand and apply the concept of toleration as on of important values in their daily lives.