A method was developed for the determination of thirteen organophosphate esters in plants by gas chromatography-ion trap tandem mass spectrometry with simultaneously accelerated solvent extraction and purification.Silica gel and active carbon were selected as the on-line purification materials,and successively put into the extracting cell.Then the plant samples were put into the cell for extraction.The accelerated solvent extraction conditions were as follows：extraction solvent：hexane-acetone(1 ∶1,by volume),the extraction temperature：100 ℃,the static extraction time：10 min,and the number of extraction cycles：2.The extract was evaporated and separated on a DB-5MS chromatographic column(30 m×0.25 mm×0.25 μm),and subsequently detected by ion trap tandem mass spectrometry under selected reaction monitoring(SRM) mode.An internal standard method was adopted for the quantitation.The recoveries obtained were in the range of 76.9%-113.0%,with the relative standard deviations of 2.0%-14.6%.The detection limits and quantitation limits of the method were in the ranges of 0.79-2.27 ng/g and 2.65-7.59 ng/g,respectively.The method is simple,rapid and accurate,and could be used for the determination of 13 organophosphate esters in plants.