, as an appendix of by the Office of Chinese Language Council International (2008) , has offered a basis for teaching characters in teaching Chinese as the second language. Chinese language teachers should follow the principle of “According to conventions of Chinese characters construction, and combine the forms, sounds and meanings of characters”, and have comprehensive observation for the 800 Chinese characters. There are more than 160 characters among the 800s can be explained by tracing back to ancient forms. Teachers have some options of teaching methods according to the different types of characters. For other characters which can not be explained by forms directly, we should look for effective teaching methods by analysis of the ideographic components and phonetic components. We had collected about 350 characters with 18 common ideographic components, and had analyzed the difference between phonetic components and sounds of 90 characters in Modern Chinese. In addition, we have briefly analyzed the causes of characters which have varied pronunciations. Meanwhile we have provided some suggestions of teaching.