The Taiwan stock market has millions of investors. If each investor spends $5,000 NTD each month on a professional technical analysis system (the current use price is $5,000~10,000 NTD) and it is conservatively estimated 100,000 investors would use the system, the market potential will be $500 million NTD. Developing an effective stock trading analysis system can help investors obtain profits. At the same time, the system buyers can also make considerable profits. The study is intended to develop a stock trading technical analysis system with moving average method.