Abstract: The present paper deals with the spatial distribution patterns of Anoplopora nobilis Ganglbauer in poplar tree land.Several methods were used to test the distribution pattern of A.nobilis.These methods are:the comparative method of frequency distribution the aggregated index methods.The results are as follows: By measuring and testing the distribution pattern of eggs.Larvae and pupae,we found that all were of the aggregated distribution pattern to be more exact of the negative binomial pattern and the degree of aggregation increases with the development of the beetle. The distribution of A.nobilis in the trunk is related to the diameter of the tree and the relation between them is when shown on a graph.The maximal values of eggs and larvae are 12.19cm and 11.92cm.The examined section can be taken between 6—8cm or 8—16cm diameter.In the former range about 85% of total beetles may be examined and in the latter 68% of the total.