Abstract: This paper dealt with comparative studies on the trace elements inside Ghost Moths larva (Hepialus) grown in 12 distinct months during one year.204 trace elements variablse were measured from the 12 groups larva,division of the groups into months,which were collected monthly during one year.All the variables and some combinations of them were explored to study the relationships among elements,feeding,behaviour and development etc.Together with all the investigation on ecological environments of the larva,by using the mathematical method we studied that the growth of the larva were influenced by the elements which were absorbed by itself.The results of clustering analysis showed that the elements contents in the body of the larva were tuned by surrounding temperature.The elements inside the larva collected in Oct.are almost equal they collected in May.The larva must moved severe and so they need to feed after hibernation in May,and stored food for winter sleep in Oct.These need led to the addition of eating substances.The resulte of correspondence analysis demonstrated that the larva absorb more elements Fe P from nourishments in Oct.and Nov.than in other months,and absorb more Na Ca Mg in Aug.and Sep.,and absorb more Cu Zn Co Cd Si elements in Apr.and May.