The Study of Technical Analysis Efficiency on A-Share Stock Market and Empirical Test

As a securities investment analysis method,the key of effective technical analysis is to use technical analysis for stock investment whether it can obtain excess profit or not.This article proves that in China a-share stock market using technical analysis can construct a stock investment strategy which can obtain excess profit.The article is on the basic of the simulation investment study on Shanghai and Shenzhen stock market.The empirical test shows that technical analysis is effective in China a-share market and also shows that Chinese a-share stock market has not fully achieved weak form efficiency market.