none Entered (wensonlu@163.com) (Objective) The project aims to conduct an investigation into the resources of parasitoid wasps for the Colorado Potato Beetle,Leptinotarsa decemlineata (Say) from the year 2012 to year 2013. (Method) The parasitoid wasps were collected from Yili,Urumqi,Fukang and Mulei with methods of net collection,classification identification, and Simpson dominance index C testing and correlation analysis were carried out. (Result) The results showed that Eulophidae,Pteromalidae, Braconidae and Scelionidae were relatively abundant, with index C - 0.4952, 0.0031, 0.0024 and 0.0019 respectively. (Conclusion) Eulophidae and Scelionidae had positive correlations with the Colorado Potato Beetle, which suggested that these two groups might be the parasitoid wasps we were searching for. The survey supported the basic statistics of parasitoid wasps,including abundance and its relationship with the host. In addition,the paper gave direction of biological control of the Colorado Potato Beetle by narrowing scope of the suspected parasitoids. Feb 2015