In this study, we examined native language phonological and phonetic factors in identification of second language (L2) tones by learners with different learning experience. Results show that when L2 tones were Categorised with high percent choice and goodness ratings into native categories, it can be accurately identified. Uncategorised L2 tones tend to be mis-identified as other L2 tones that were assimilated into overlapping native response categories. L2 tones with unique phonetic characteristics can be easily identified even though they were Uncategorised. Thus, our research has theoretical implications for L2 speech learning models and ramifications for L2 lexical tone teaching and learning.