Neoseiulus cucumeris is generalist predatory mite with an extensive prey spectrum encompassing many small agricultural mites and pests, having significant economic and ecological importance as a globally commercialized biological control agent. Despite its early introduction to China, its suitable distribution areas in China and the potential influences of climate changes on its distribution remain predominantly uncharted. In this study, MaxEnt model was employed to predict its distribution in China currently and under climate changes at 2050S and 2070S with 19 bioclimatic variables. The AUC values predicted by the model were 0.87, indicating that the accuracy of the model was high. Three most important environmental variables affecting its distribution were precipitation of the coldest quarter, mean temperature of the wettest quarter and annual precipitation, with contribution rates of 36.2%, 25% and 18.1%, respectively. The analysis showed that the suitable area of N. cucumeris accounted for about 60% of China's total area currently. The suitable area of this predatory mite showed an expansion, would be 63% by 2050S under climate changes. Its distribution center was presently situated in Sichuan Province, with a projected shift towards northeastern China. This study clarified the suitable release areas and possible colonization areas of N. cucumeris in China, which provided a theoretical basis for the field application of this introduced natural enemy.