This study mainly uses quantitative stock selection strategy based on the fundamentals, and explores whether the help of technical indicators can improve the performance of this strategy. In this study, the fundamentals strategy uses a continuous P/E ratio as the stock selection strategy, and backtests the performance of reselecting the portfolio every year. After that, the moving average of technical analysis is added to this strategy to see whether the indicator of moving average can effectively improve the performance of the above fundamental strategy. In addition, in order to reflect the real investment situation, this thesis also considers the delisting of stocks after purchase, which will make the backtesting results closer to the reality.