Measuring method for aniline content in drug

The invention provides a measuring method for the aniline content in a drug. The measuring method is characterized in that the aniline content in the drug is analyzed through high performance liquid chromatography, and the method comprises the steps of chromatographic condition and system suitability testing, reference solution preparing, test solution preparing and content calculating. The method has the advantages that the sensitivity and the specificity are high, operation is easy and convenient, and the small amount of the aniline existing in the drug can be accurately and reliably detected, so that the content control requirement for the genetoxicity impurity aniline in the drug is enhanced and the safety and quality controllability of the drug are improved.