Abstract: There is no special standard for the determination of precious metal content in precious metal alloy electroplating wastewater.An ICP method for the determination of 5 precious metal elements in precious metal alloy electroplating wastewater was established in the study.By means of drying,dehydration,and roasting,the influence of impurities in electroplating wastewater was effectively avoided.The condition tests on roasting temperature,roasting time,and acid dosed for dissolution of the sample were conducted,which determined that the roasting temperature was 550 ℃,the roasting time was 2 h,and the dosage of acid (aqua regia) used for sample dissolution was 10 mL.The recovery rates were 97.33 %-102.67 %,and the relative standard deviation (RSD) was 0.58 %-2.58 %.The accuracy and precision are up to the requirements of analysis and testing.