在中国高校学习德语的学生,基本都有英语基础。英语和德语作为亲属语言同属日耳曼语族,存在许多相同和相似之处。因此,在学习德语的过程中,已有的英语知识必然会对德语学习过程产生影响。可以说,英语知识是一把双刃剑,可以促进学习和理解德语的过程,有时也会带来更多的困惑和干扰。本文对这两门同源语言从语音、语法和词汇上进行对比分析,探讨其共性和区别,在对比研究结果的基础上,对德语学习提出有针对性的改善建议,从而实现英语知识对德语学习的正牵引作用,尽可能地排除负面的干扰。 Students who study German in Chinese universities basically have an English foundation. English and German as relatives belong to the Germanic languages, there are many similarities and similarities. Therefore, in the process of learning German, the existing English knowledge is bound to have an impact on the German learning process. Can be said that English knowledge is a double-edged sword, can promote the process of learning and understanding of German, and sometimes also bring more confusion and interference. In this paper, we compare and analyze these two homologous languages ​​from the aspects of phonetic, grammatical and lexical meaning, and discuss their commonalities and differences. Based on the comparative study, we propose some suggestions for improving German learning so that English knowledge can be applied to German Learning positive traction, as far as possible to exclude negative interference.