Abstract: This article explores the exploration and practice of digital construction of professional Japanese language teaching in universities from an ecological perspective. Against the backdrop of rapid globalization and informatization, Japanese language teaching in universities is facing new challenges and opportunities. The ecological perspective emphasizes the harmonious coexistence of teaching environment, requiring digital construction not only to improve teaching efficiency, but also to pay attention to students'learning experience and growth. This article analyzes the practical path of digital construction in resource construction, technological support, innovative teaching modes, teacher-student interaction, and evaluation feedback. By building a rich library of digital teaching resources, constructing intelligent online learning platforms, implementing blended learning models, strengthening the construction of teaching staff, and establishing a scientific evaluation system, professional Japanese language teaching in universities can achieve ecological balance in the digital environment. These explorations and practices not only improve the quality and efficiency of Japanese language teaching, but also promote the cultivation of students'self-learning ability and cross-cultural communication ability.

Key words: Ecological perspective, Professional Japanese, Digital teaching, Teaching reform, Japanese language teaching, Personnel training