Abstract: The paper reports one case patient of transcortical sensory aphasia with prominent semantic comprehension disorder. Clinical features were fluent aphasic output, serious auditory comprehension disorder,anomia and prominent disorder in word-lexical level comprehension. Repetition was a little difficult and was remarkably better than other test. There was serious alexia with agraphia, however, copy, series writing, visual spatial function and calculation were intact. His audition was norma1. He could distinguish not only non-word and non-verbal sound but also family member's and acquaintance's sound, but he couldn't understand their talking content. It should be distinguished from pure word-deafness and auditory agnosia- Moreover, we tried to discuss its mechanism.

Key words: transcortical sensory aphasia, semantic comprehension disorder, pure word-deafness, auditory agnosia