Chinese characters are in order. Therefore, the concept of "Basic Chinese Characters" mentioned in this paper can be borrowed for reference in any countries and regions wherever people study and use Chinese characters. Chinese characters present a high level and fully ordered mature character system in the four aspects of "shape, pronunciation, meaning and use". It is a fundamental construction for Chinese characters researchers and educators to study the traits of the Chinese character sequence system deeply and systematically, and confirm the order of learning Chinese characters. This paper only makes a preliminary discussion on this regularity and puts forward the ideas and methods on improving the way of learning Chinese characters. It points out that learning Chinese characters need to learn "Basic Chinese Characters" first. On this base, this paper discusses what are the basic Chinese characters, how to define and learn them.