This study is to construct the system to sort the best personal innate occupation group by utilizing Myong-Ri which is the most representative occupational aptitude theory that includes Yin and Yang.Five Element, Yongshin, Gyukguk, Ilju, Shipshin, Shipiunseong and Ilji theory. In other words, the purpose of this study is to maximize the accuracy of innate occupation by reflecting all available applicable theories at the same time. The occupational aptitude theories of Myong-Ri, such as Five Element, Yongshin, Gyukguk, Ilju, Shipshin, Shipiunseong, and Ilji theory, are utilized to develop the system. To build the structure, 5 different tables are needed. The web-based system enables you to check and save the results, regardless of time and place. The web-based occupation guidance system overcomes the off-line test limits such as, time-gap results, limitation of paper result safekeeping and test method complexity. It covers innate aptitude by Myong-Ri, as well as occupational trait. Furthermore, this system can be converted to mobile web-based condition and it will improve accessibility.