The pretreatment of sample is complicated and the cost is high if national standard method,strong base fusion-spectrophotometry,is used to determine tungsten and molybdenum.So hydrochloric acid-nitric acid-hydrofluoric acid-perchloric acid solution is used to decompose samples,and then oxalic acid-hydrochloric acid solution is used to leach tungsten,tungsten and molybdenum are simultaneously determined by inductively coupled plasma atomic emission spectrometry.The relative deviation of the results between the determination method and reference value is ≤4.55 %,the relative standard deviation is 1.15 %-7.89 %,and the accuracy and precision are good.The method is simple and applicable for batch determination of tungsten and molybdenum in ores.