药品不良反应（ADR）是指药品在正常用法、用量情况下所出现的与治疗目的无关的有害反应。随着我国医药行业的不断发展、药物种类的逐渐增多，一些药物的ADR也随之出现。本文选择了与儿科临床用药有关的四种杂志，对小儿ADR的发生率与药品的类别、患儿的性别、年龄及程度的关系 Adverse drug reactions (ADR) refers to the drug in normal usage, the amount of the situation appears to have nothing to do with the purpose of the treatment of harmful reactions. With the continuous development of China’s pharmaceutical industry, the types of drugs gradually increased, ADR of some drugs also appeared. This article chooses four kinds of magazines related to pediatric clinical medication, the relationship between the incidence of ADR in children and the type of drug, the gender, age and degree of children