The present research uses the video-picture paradigm to investigate the effect of family language environment on the speechreading comprehension of Chinese for hearing-impaired students.The result shows that the accuracy of the speechreading comprehension of Chinese under speaking environment is significantly higher than non-speaking environment,and there was no significant difference in response time under two conditions.The accuracy of Chinese words phase is significantly higher than the single character and the Chinese sentences.The response time of sentence is significantly longer than cha...