Abstract The purpose of this study was to investigate the effects of the academic achievement on the achievement of computer, the attitudes toward computer. A questionaire with 30 questions was administered to 56 students (35 males, 21 females) in junior high school. The major findings of this study were: (1) There was no significant difference between the high-academic and the low-academic achievement group on the subjects' liking, confidence, and anxiety. (2) There was no significant difference between the high-mathematic and the low-mathematic group on the subjects' linking, confidence, and anxiety. (3) For the high-achievement of computer gruup had a significant influence on the subjects' confidence, anxiety, but not on the subjects' liking for computer. (4) For the high-academic achievement group had a significant influence on the achievement of computer, but the high-mathematic achievement group had not it.