in view of the problems of indexes and the cognitive problems concerning interpretation in co-word analysis, this paper proposed a fine-grained semantic co-word analysis method. In order to realize the fine-grained semantic co-word analysis,on the one hand,the statistic unit of the co- words is changed from “ articles unit” to “ knowledge ( RDF) unit” ;on the other hand,semantic of co-word is integrate into the method. At last,this paper analyzed the soundness of the proposed method ...