A method for the determination of seven trace inorganic anions（F-，NO-2，Cl-，Br-，NO-3，PO3-4，SO2-4） on the surface of printed circuit board（PCB） was established by ion chromatography combing with microwave preconcentration.The PCB samples were extracted by water,and preconcentrated with microwave oven.The IC separation was carried out on Ionpac AS23 analytical column using 4.5 mmol/L Na2CO3-0.8 mmol/L NaHCO3 as mobile phase at constant flow rate of 1.0 mL/min.Under the optimal conditions,seven anions were successfully separated within 23 min.The calibration curves of F-，NO-2，Cl-，Br-，NO-3，PO3-4，SO2-4 were linear in the ranges of 20-200,50-500,50-500,100-400,50-500,200-800, 50-500 μg/L,respectively.Their detection limits（S/N=3） ranged from 0.5 μg/L to 2.4 μg/L.The spiked recoveries were between 86% and 105%with relative standard deviations（RSDs） less than 5.0%.The method was simple,rapid,sensitive and reliable,and was suitable for the simultaneous determination of seven anions on the PCB.