本研究首先介绍了《欧洲语言共同参考框架》的交际语言能力内涵，并对最新发布的《欧框》（补充本）中关于在线语言互动能力的量表及描述语进行了评介。其次，通过采用混合式研究方法，文章对当前较能系统性体现出对学习者在线语言交际能力培养的日语教材《Irodori：生活中的日语》(简称Irodori）进行了分析，旨在探讨该教材与在线语言互动能力量表及描述语的关联。研究结果为未来以教材学习活动设计为基础的在线语言能力提升提供有益参考。

With the rapid development of digital information technology, the internet has become an important platform for communication and learning. Against this backdrop, online language communication skills have attracted increasing attention. This study first introduces the communicative language proficiency framework outlined in the Common European Framework of Reference for Languages (CEFR) and summarizes the latest online interaction language proficiency scale and illustrative descriptors provided in the newly released CEFR Companion Volume (CEFR CV). Furthermore, employing a mixed research methodology, this study delves into the analysis of scenario-based communicative activities in the Irodori series of Japanese textbooks, which systematically cultivate learners’ online language usage abilities. The aim is to explore the correlation between these textbooks and the descriptors. The findings of this research offer valuable insights for future endeavors aimed at enhancing online language proficiency based on textbook learning activities design.