System for automatic pinyin annotation of Chinese characters and annotation method of system

The invention relates to a system for automatic pinyin annotation of Chinese characters and an annotation method of the system. The system comprises a database, an extracting module, a converting module and a display module, wherein Chinese characters and pinyin corresponding to the Chinese characters in a two-spelling method are stored in the database, and the system can achieve automatic pinyin annotation on the Chinese characters. Due to the fact that only the pinyin composed of two characters or the pinyin with one character is annotated over each Chinese character, the layout of a reading material with pinyin annotation is tidy and attractive, and meanwhile the size of the pinyin characters is obviously increased. In addition, vowels and various characters can be memorized easily, and thus the study of children and the protection of the vision of the children are highly facilitated.