In this paper,the parasitoid of Bactrocera minax was first recorded in China. Morphological and molecular identification and biological characterization were carried out. The results showed that the chest and the abdomen of the parasitoid of Bactrocera minax were mostly black. Vein mcu of fore wing juse postfurcal,and the antennae were 6367 knots. The the middle tibia and tarsus were orangeyellow,the hind leg was black,and the mesothorax had obvious “V” pattern. Results of further analyzing the NJ phylogenetic tree of COI gene and 28sRNA gene revealed that the parasitic wasp was closely related to Diachasmimorpha longicaudata,Diachasmimorpha kraussii,Diachasmimorpha tryoni. Under natural conditions,the emergence period of parasitoid was significantly longer than that of B. minax. The proportion of emerged females increased with the rise of temperatures. Combined with its morphological characteristics,it was named as Chinese citrus fly cocoon wasp (Diachasmimorpha feijeni).