A high performance liquid chromatography-tandem mass spectrometric(HPLC-MS/MS)method was developed for the determination of 16 perfluoroalkyl acids in textiles.Samples were extracted with methanol through ultrasonic method.The target ingredients were separated on a C18 column(100 mm×2.1 mm，2.7 μm) using a mixture of methanol-water system as mobile phase by gradient elution.The 16 perfluoroalkyl acids were analyzed by MS under multiple reaction monitoring mode(MRM).The linear ranges of 16 perfluoroalkyl acids were between 1 ng/mL and 1 000 ng/mL.The limits of quantitation were between 0.21 μg/m2 and 1.53 μg/m2.The recoveries ranged from 84.8%to 107.4%,with relative standard deviations(RSDs,n=6) not more than 7.2%.This method was fast,sensitive,accurate,precise and convenient to operate,and it was appropriate for the determination of perfluoroalkyl acids in textiles in routine tests.