A search on acupuncture Deqi was conducted using four Chinese-language biomedical databases(CNKI

WanFang

VIP and CBM)and PubMed database and using keywords"Deqi"or"needle sensation""needling feeling""needle feel""obtaining qi"

etc.Then

a "Modern Literature Database for Acupuncture Deqi"was established by employing Microsoft SQL Server 2005 Express Edition

introducing the contents

data types

information structure and logic constraint of the system table fields.From this Database

detailed inquiries about general information of clinical trials

acupuncturists' experience

ancient medical works

comprehensive literature

etc.can be obtained.The present databank lays a foundation for subsequent evaluation of literature quality about Deqi and data mining of undetected Deqi knowledge.