This study investigates the relationship between interpreter training and the development of executive functions, as well as the predictive role of executive functions in consecutive interpreting between Chinese and Japanese. The experimental design involves two distinct groups: one consisting of advanced Japanese learners with no prior interpreter training, and the other comprising learners who have completed one year of professional interpreter training. The research yields the following key insights. (1) Interpreter training demonstrates the potential to enhance executive functions, although these enhancements may not be notably conspicuous in early to intermediate-level interpreter learners. (2) Interpreter training is likely to enhance 'hot' executive functions. (3) Regardless of differences in interpreter training experience and the directionality of the source language, executive functions emerge as significant predictors of interpreting performance.