The researcher analyzes the distribution and types of image-schema-based metaphorical extension(or IS-based meta-extension) in the semantic extension of 203 polysemous verbs,which can be named as PVs and are randomly selected from Longman Dictionary of Contemporary English(2nd Edition,1993).She finds that IS-based meta-extension is pervasive in the semantic extension of verbal polysemy.Specif ically,she f inds 77.83% of the samples can be analyzed in terms of IS-based Meta-extension,and PVs that can be analyzed in terms of path-IS-based,force-IS-based,containerIS-based,path+force-IS-based,and path+container-IS-based metaphorical extension,together making up 70.44% of the samples.