The Longkan Shoujing 龍龕手鏡 written by Xingjun Buddhist monk in Liao Dynasty is a very important book in the history of the development of Chinese characters. Not only does it contain a large number of different characters in the Buddhist scriptures but provides a lot of difficult phonetic transcriptions and interpretations. It has important research value to the interpretation of difficult characters, the study of near ancient Chinese characters, the interpretation of unearthed and handed down documents, the compilation and revision of large-scale dictionaries, and the history of research on the history of dictionaries. With the advent of the digital age, processing methods of Chinese characters have changed a lot. Database-based philological studies can overcome the historical limitations of traditional Chinese philology and achieve the goals that traditional philology cannot. With reference to the accumulated experience of the academic research in database grammatology studies, we developed the corpus of Longkan Shoujing, designed the problem-oriented database structure, added various attribute annotations, solved the problem of insufficient Chinese characters set by collecting foreign words, and strived to build a perfect database of Chinese characters. The completion and improvement of the corpus of Longkan Shoujing will bring us new things in traditional Chinese philology, phonology, exegesis, lexicography, ancient books, as well as the creation of scientific Chinese philology and social life applications. By means of providing new research methods resting upon a new way of thinking, this work will effectively promote the further development of related research.