本文基于HSK动态作文语料库，就对外汉语教学中的成语偏误进行研究。首先，针对成语本体主要分析了成语的定义、来源、构造以及对外汉语成语教学的原则和意义。其次，利用语料库中的语料分析了外国学习者成语使用的偏误，将其概括为书写形式、语义理解、句法应用、语用环境四种类型。最后，针对偏误的类型，从教师和学习者两方面提出了相应的解决策略。希望通过本文的研究，能够帮助对外汉语教师在教学过程中有针对性地采取教学策略，提高学习者使用成语的正确率。

Based on HSK dynamic composition corpus, this paper studies the idiom errors in teaching Chinese as a foreign language. Firstly, the definition, source and structure of idioms and the principle and significance of idiom teaching in Chinese as a foreign language are analyzed. Secondly, using the corpus in the corpus to analyze the errors of foreign learners ' idiom use, it is summarized into four types : writing form, semantic understanding, syntactic application and pragmatic environment. Finally, according to the types of errors, the corresponding solutions are proposed from both teachers and learners. It is hoped that through the research of this paper, it can help Chinese teachers to adopt targeted teaching strategies in the classroom and improve the accuracy of learners ' use of idioms.