The　fatty　acid　esters　of　chloropropanols　(referred　to　as　chloropropanols)　in　edible　vegetable　oil　is　a　new　food　pollutant　of　international　concern　recently　and　its　pollution　is　investigated　firstly　in　this　paper.　Eleven　kinds　of　edible　vegetable　oils,　such　as　soybean　oil,　camellia　oil　and　peanut　oil,　were　sampled　in　the　numerous　chain　supermarkets　in　China　and　divided　into　143　parts.　After　alkaline　hydrolysis,　the　oil　samples　were　purified　with　matrix　solid-phase　dispersion　(MSPD)　of　kieselguhr.　The　extract　was　derived　and　then　detected　by　gas　chromatography　with　mass　spectrometry　(GC/MS).　3-chloropropane-1,　2-diol　(3-MCPD　ester)　and　2-chloropropane-1,　3-diol　ester　(2-MCPD　ester)　were　determined　quantitatively　with　stability　isotope　internal　standard　method　and　were　found　detectable　rate　of　74.8%,　49.7%　in　11　kinds　of　edible　vegetable　oils,　respectively.　The　contents　ranged　from　＜limit　of　detection　(LOD)　(0.064　mg/kg)　to　5.96　mg/kg　(calculated　as　dissociated　3-MCPD)　and　＜　LOD　(0.072　mg/kg)　to　3.43　mg/kg　(calculated　as　dissociated　2-MCPD),　respectively.　Relatively　serious　pollution　problems　were　found　in　camellia　oil　and　sesame　oil,　and　the　median　was　1.63　mg/kg　and　0.60　mg/kg,　respectively.　There　was　a　linear　correlation　between　the　contents　of　3-MCPD　ester　and　2-MCPD　ester　with　the　correlation　coefficient　of　0.899.