The task-based teaching approach, rooted in communicative language teaching, has gained prominence in second language acquisition. Advocating that language learning is best facilitated through the completion of communicative tasks, this method has captured the attention of language educators worldwide.

In recent years, there has been a growing interest in the field of Portuguese grammar teaching. Basic Portuguese grammar courses are integral to Portuguese majors in Chinese universities. However, there is a dearth of research exploring the application of the task-based teaching method to Portuguese grammar instruction in the Chinese higher education context. Presently, traditional teaching methods dominate Portuguese grammar classrooms, which can be discouraging for many students.

In light of this situation, there is a compelling need to introduce the task-based teaching method into the realm of grammar instruction for Portuguese. This paper aims to bridge this gap by investigating the potential benefits and challenges of implementing a task-based approach in Portuguese grammar classes, shedding light on a novel pedagogical approach that could enhance the learning experience for Chinese university students studying Portuguese as a second language.