After World War II, some countries such as USA, Canada, Japan, SouthKorea, Republic of China, etc., had established a sci-tech information servicecenter to promote its sci-tech research and development. Through theinformation services provided by the sci-tech inforamtion center these countriestake great advancements in sci-tech researches and engineering developments.By using comparative method, this research is to compare Canada Institute forScientific and Technical Information ( CISTI ) with Science and TechnologyInformation Center ( STIC ) of Republic of China on organization, holdings,databases, and information services.