Abstract:This study investigates whether formulaic sequences’ frequency and the language proficiency of EFL Chinese learners would affect the holistic representation and access of formulaic sequences in the L2 mental lexicon Two groups of subjects with different levels of English proficiency were chosen, and they were asked to complete a reaction time task and a L2 frequency checking task Eprime software and Praat (version 4304) speech analysis software were adopted in the present study The findings revealed the effect of frequency but they did not show the effect of language proficiency in the holistic status of formulaic sequences in the L2 mental lexicon