Abstract: The authors performed a survey on the effect of harmful chemicals on earthworm faunas and carried out toxicological tests for heavy metals for agrotypes in middle Shandong.The survey of representative agrotypes revealed that the earthworm is classified into’3 families,6 genera,8 species’in the cropland of brown earth,`3 families,5 genera,6 species’in the cropland of drab soil and’3 families,6 genera,6 species’in the cropland of moist soil.The survey,analysis and poisoning test revealed that to heavy metal contamination’Allolobophora caliginosa trapezoids duge,Amynthas hupeiensi and Drawida japonica japonica’are three sensitive species which are applicable for reactive indication,’Eisenia foetida, Bimastus Parvus and Metaphire guillemi’are 3 tolerance species which are applicable for accumulation indication.