Constructivism is a theory related to knowledge and learning, focusing on learners' subjective initiative, based on which the interactive approach has been proved to play a crucial role in language learning. Accordingly, the interactive approach can also be applied to translation teaching since translation itself is a bilingual transformational and communicative act. For a long period of time, there are a few universities in China having made use of network for translation teaching, but it is a pity that the most popular communicative software Wechat has not been attached importance to. This paper aims to elaborate the problems in current translation teaching and construct a new model for translation teaching through Wechat so as to further improve students' subjective initiative and the teaching efficiency.