【Background】The invasive insect Procontarinia robusta was first found in Xiamen City in 2000. The spread of this destructive insect poses a serious threat to mango trees. 【Method】The percentage of leaf infestation, infestation level, and the emergence rate of the insect pest were analyzed in Jimei University, Tongan Xiaoximen, Siming, Dongdu, Gulang Island, Haicang, and Xinglin, all in Xiamen City. The levels of infestation were classified into 1~50, 51~100, and >100 galls per leaf. 【Result】There was no significant difference in the percentages of leaf infestation in Haicang (95.[KG-*8]46%), Siming (94.[KG-*8]00%), and Tongan (80.[KG-*8]09%) in spring 2009, but a significantly lower infestation rate was found in the Jimei area (22.[KG-*8]50%). In fall 2009, the highest infestation of P.robusta was observed in Haicang (97.[KG-*8]05%), with a significant difference compared with the other areas; The lowest infestation was found in Jimei (18.[KG-*8]00%). No significant difference was found in spring 2010, with less than 3% infestation in the seven areas. A considerable number of galls were found, up to 1~50 galls per leaf, especially in summer 2009. The emergence rate in summer 2009 and fall 2009 were 80% and 60%~94%, respectively. A low rate of emergence was found in spring 2010. 【Conclusion and significance】The lower infestation levels found in spring 2010 were probably due to climatic factors. The different areas have no effect on the emergence rate. Once the populations of P.robusta have been successfully established, the fecundity is unaffected. The study provide basis for understanding the spread of P.robusta and making control measures.