Relation markers play an important role in indicating the relation of compound sentences. In Chinese information processing, the extraction and marking up of relation markers is the first step in the process of using a computer to accomplish an analysis of the relation hierarchy of Chinese multi-hierarchy compound sentences. According to the requirements of using a computer to process Chinese compound sentenees, and combining with the theory of tag marker and collocation, a relation marker extraction algorithm called the Forward Extraction Algorithm, is proposed in this paper. Through the o- p...