Establish the Learning Educational Program and remedy instructions based on Bayesian Networks after discussing with professors and teachers. The program offer the remedy instructions immediately based on the mistaken types. It is time consuming on traditional paper test. Students take the examination online and the program analyzes the mistaken types. By doing so, teachers can adjust their teaching based on the test result. The study would like to achieve the targets as below. 1. Analyzing the reference of ability index on Grade 6, figure out the frequent mistaken types and set up the Bayesian Networks. 2. Designing the diagnosing questions in accordance with the Bayesian Networks. 3. Editing the remedy instructions based on the Bayesian Networks. 4. Demonstrating the outcome of diagnosing test and remedy instructions.