Google Scholar是综合性的搜索引擎,PubMed是专业性的检索数据库,两个系统的共同点是都能搜索学术丈章,但由于两者拥有不相同的搜索数据及搜索方式的极不相同,返回的结果往往不同。通过对Google Scholar和PubMed做各种不同的搜索试验,对搜索结果进行比较和对比,得出两个系统之间的不同之处,发现造成这些不同的原因,以更清晰地了解Google Scholar和PubMed各自的搜索能力。 Google Scholar is a comprehensive search engine, PubMed is a professional search database, both systems have the ability to search academic chapter, but because of the two have very different search data and search methods are very different, return The results are often different. Through different search experiments on Google Scholar and PubMed, we compared and compared the search results to find the differences between the two systems and found that these different reasons led to a clearer understanding of Google Scholar and PubMed Respective search ability.