我国证券市场发展速度迅猛,同时相对比较完善,出现了许多大小不一的投资队伍、金融机构,使我国的金融市场更加丰富。金融市场的丰富不仅促进我国金融市场的发展,同时还极大的增加了我国金融环境的复杂性,出现了越来越多的风险类型。研究出最优的证券投资组合是目前所有投资者共同的课题。一、投资组合研究现状投资是希望空闲的资金产生更大的利益,但是随着投资收益的不确定性,投资者通常选择多种投资方式来降低投资中的风险, The rapid development of China’s securities market, at the same time relatively perfect, there have been many different sizes of investment teams, financial institutions, to make our country’s financial markets more abundant. The abundance of financial markets not only promotes the development of China’s financial markets, but also greatly increases the complexity of China’s financial environment and more and more types of risks. Researching the optimal securities investment portfolio is a common issue for all investors. First, the status quo of portfolio research Investment is the hopeless idle funds have greater interests, but with the return on investment uncertainty, investors usually choose a variety of investment methods to reduce the risk of investment,