The goal of the research is to decribe the EFL teacher’s reflection on their practices in the implementation of Visual Vocabulary Application. Based on the phenomenon and the empirical findings above, this study attempted to use the theoretical and methodological assumptions derived from Gibb’s stages of reflection. This research was conducted by in-depth interviewing the teacher at SMP Muhammadiyah 1 Alternatif Kota Magelang in 7th grade. The research made field notes based on the raw data, then applied interviews as the data collection processes. The method of this research is narrative inquiry research. Narrative inquiry is a qualitative approach that captures the personal and human dimension of lived experiences and presents narratively. Narrative inquiry approach attempts to understand how people think and experiences through event and what they value. The researcher used critical incident analysis (CIA) to process the data. CIA is a qualitative research analysis that involves the thorough description and analysis of an authentic and experienced event within its specific context. The result of this research showed that EFL teacher’s reflection on the implementation of Visual Vocabulary Application has a positive reflection. Thus, the teacher plans to use this application in other learning topics. Even though, the teacher found some problems, this application still has several advantages, and to overcome the problem, the teacher prepare another learning media without reducing the essence of the material and time estimation.