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This paper is proposed the lip-reading computer assisted instruction (CAI) for hearing impairment student. It consists of two units: the first unit is a part of the learning lesson. In this unit, the student can learns the various categories of vocabulary. The vocabularies come from the thing which use in day life, such as Fruit, Animal, vehicles and so on. It enables student to practice pronunciation by looking at a model speaker mouth movement. The second unit is the multiple choice game. The student has to see lip-reading video and choose the correct answer choice. Experiments are tested with ten hearing impairment primary school students. The result of before and after practicing with the CAI system are evaluated. The rate of correctly mouth shape recognition is grater after practicing with the system for improvement of pronunciation.