Abstract:  Sitophilus granarius Linnaeus is an important pest worldwide. At present， it only appears in a few areas in China， but it is necessary to predict its suitable living areas in China. According to the geographical distribution of S.granarius and the related climate parameter， we analyzed its adaptability in China using the CLIMEX （adaptability analysis software） and ArcGIS （geographic information system）. The results showed that under the current climate conditions， S.granarius has a broad spectrum of adaptability and a wide distribution， the geographical distribution approximately accounted for half of China， which was mainly concentrated in the southeast of China. Almost all the provinces were the adaptability areas of S.granarius except Xinjiang province. Therefore， we must enhance the quarantine strength of S.granarius in China\|imported grain and domestic grain transportation， take corresponding prevention and control measures to strictly prevent the invasion and spread of this pest.

Key words: Sitophilus granarius, CLIMEX, adaptability analysis