Due to the complexity of today’s financial market, it is normally difficult for investors to choose high-quality investment targets. However, professional calculation and analysis can effectively evaluate the risk and the performance of each stock. Hence, the investors can choose a more suitable portfolio according to their own risk preferences. In this report, eight stocks in Australian markets are selected, which are ANZ, NST, WOW, QAN, TLS, AGL, CBA and SYD. By calculating the various data for the recent 2 years from 2016 to 2018 of these stocks, four effective investment portfolios are obtained. The purpose of this research is to provide samples and methods for investors to analyze and it can help investors to choose more suitable portfolios for themselves. In this report, Excel software is used to calculate specific data and draw the curve of the portfolio opportunity set and CAL line. Besides, Capital Asset Pricing Model is used to analyze as well.