Abstract: With gradually deepening studies on the figurative language processing, it has been found that left hemisphere took an active role in figurative language processing. It challenged the early hypothesis, according to which right hemisphere was the main biological mechanism in figurative language processing. Recent researches, however, proved that anterior prefrontal cortex also takes part in the processing of figurative language. Thus understanding of figurative language involves the simultaneous activation of left hemisphere, right hemisphere and anterior prefrontal cortex, even though they take different effect. More evidences are expected to prove that there is the establishment of neural network in the processing of figurative language.

Key words: figurative expression, brain mechanism, right hemisphere advantage