The purpose of this study is to investigate the effect on word recognition of aborigine''s child with the low achievement in Chinese after taking “Focused Word Recognition Method with Multimedia Computer”. Researcher utilizes the ATD（Alternating Treatment Design）with single subject research to assign the teaching experiment procedure. The subjects are two aborigine''s students with the low achievement in Chinese on fifth and sixth grades of elementary school. The effect on word recognition is quantified and processed by visual analysis from the testing and sub-testing scores on word recognition in the experiments.
The results of this study are summarized as followed：
（1）All the subjects have better performance on the effect on word recognition with “Multimedia Computer-Based Learning Method” than “Traditional Instruction”.
（2）All the subjects adopt the “Multimedia Computer-Based Learning Method” in the last stage and the effect on word recognition remains stable.
（3）According to the interview, all the subjects think “Multimedia Computer-Based Learning Method” is helpful for them and have more interests on “Multimedia Computer-Based Learning Method”.
