Gansu Jiandu is not only an encyclopedia from the Qin Dynasty (221-206 BC) to the Qing Dynasty (1644-1911), but also a physical evidence of the development and prosperity of the ancient Silk Road. It possesses high historical, scientific and artistic value. At present, the Gansu Jiandu Museum has preserved more than 40,000 pieces of Jiandu and over 10,000 cultural relics unearthed along with it.

In this publication of Xuanquan Bamboo Slips of the Han Dynasty, the preface records the whole process of the discovery, excavation and research of the Xuanquanzhi Ruins and the Xuanquan Bamboo Slips of the Han Dynasty. The following list is attached with relevant information of size, age and texture, providing high-level original materials for academic research on topics such as the Han Dynasty, Northwest China, and the Silk Road.

Yumen Pass Bamboo Slips of the Han Dynasty contains 729 bamboo and wooden slips of the Han and Jin Dynasties (including 2 bamboo slips of Jin Dynasty) unearthed from various beacon tower ruins in Dunhuang and stored in the Dunhuang City Museum over the years, including 381 excavated at the Yumen Pass ruins in 1998, 57 Xuanquan bamboo slips of the Han Dynasty collected at the Xuanquanchi Ruins from 1987 to 1990, and 79 sporadic bamboo slips of the Han Dynasty collected at other beacon tower ruins since 1990. They were all published for the first time. The other 212 pieces have been published before, but this time they are reorganized, with clear pictures and more accurate interpretations, they will be presented to the readers in a new look.

Its collation and publication is of special significance for studying the functions and functions of Dunhuang county and Yumen Pass on the Silk Road.