Abstract
The purpose of this study was to develop the feedback system of computer assisted language learning system for Japanese writing on the WWW. The feedback system has four functions: 1. identifing the wrong phrase by rules, 2. creating useful feedback messages for the leaner, 3. creating useful examples, and 4. creating the Verb table. A survey has been done by asking some leaners to use the system. Then leaners response to questionnaire and the success rate of identification of wrong phrase has been investigated