·Ancient Chinese Language
·History of Chinese Grammar
·History of Chinese Vocabulary
·Monographic Study on Philology
·Introduction to the Chinese Paleography
·Studies on the Classics of the History of Chinese Grammar
·Phonology

1. On the System of Alternative Questions during the Tang and Five Dynasties (《唐五代选择疑问句系统初探》);
2. On the Overlapping Form of Monosyllabic Verbs (《单音节动词重叠形式探源》);
3. On Archaic Phonology of ‘Qiu(求)’ and ‘Qiu(裘)’ (《“求”、“裘”古韵考》);
4. The Annotation of ‘Zun (尊)’ in the Bronze Inscriptions of the Yin-Shang and the Western Zhou Dynasties (《殷商西周金文“ 尊”字正诂》);
5. The Issues of Scripts in the Bronze Inscriptions of the Han Dynasty (《汉代金文中的文字问题》;
6. Methods in Defining Synonymy in the Studies of the Vocabulary of Ancient Chinese Books (《古汉语专书词汇研究中同义关系的确定方法问题》);
7. A Discussion of the Linguistic Data in the Studies of the History of Vocabulary and Grammar in the Han Dyansty (《两汉词汇语法史研究语料述论》);
8. The Role of the Economic Principle of Language in the Course of Chinese Grammar Development (《语言的经济原则在汉语语法历时发展中的表现》);
9. A Study of the ‘Noun-Verb’ Compound Words in Biased-positive Formation of Modern Chinese ( 《现代汉语偏正式“名·动”复合词研究》);
10. An Investigation into Linguistic Features and the Confirmation of Translators for the Buddhist Scriptures of ‘Misguided Text’ (《语言特征的考察与“误题”译经译者的确定》);
11. The Value of Unearthed Documents to the Research of the History of Chinese Language (《出土文献对汉语史研究的价值》);
12. A Study of the Chinese Local Morpheme Antonym of Nouns(《汉语局部同素反义名词研究》);
13. The Logico-semantic Analysis of the Front Part of Conditional Sentence “VP” and “VP者” in Ancient Chinese (《古汉语条件句前件“VP”及“VP者”相关结构逻辑语义分析》);
14. On the Variant Characters in the Bronze Inscriptions in the Han Dynasty ( 《汉代铜器铭文异体字研究》);
15. Research on the Analogous Characters of the Bronze Mirror Inscriptions in the Han Dynasty( 《汉镜铭文类化字研究》)