提出了汉字全文检索系统的新的数据结构、建库和检索的算法，完成了程序设计、用于对中国化学文献数据库标题和文摘的检索，测定了索引建立时间、空间消耗和检索的响应时间，计算了每篇文献的长度在不同范围时的高频字数和索引空间消耗，讨论了索引膨胀比与文献长度的关系 A new data structure, database construction and retrieval algorithms for Chinese full-text retrieval system were proposed. The program design was completed and used to search for the title and abstract of Chinese chemical literature database. The index establishment time, space consumption and retrieval response time , Calculated the length of each document in a different range of the length of the high-frequency words and index space consumption, discusses the relationship between index expansion ratio and the length of the literature