In order to mitigate the burden of government expenditure and improve the management of university, national universities in Taiwan have implemented the system of University Endowment Fund. The establishment of University Endowment Fund System has enacted for 16 years since 1996. The maintenance of National University mostly depends on government support in the past. And the college maintenance fund turned into half government support and half self-raised fund after the University Endowment Fund System has been enact. The investment gain is the most undeveloped item in five self-raised items. Most of National universities take bank deposit as its only investment. As a result, this paper aims to study about university investment. Investigate the latest law and regulation of national university and find the characteristic of college investment. Take National Sun Yat-sen University for example and establish the investment policy for national university. Select appropriate invest stock for National Sun Yat-sen University, and the select mechanism depends on the investment policy. Take the cash dividend to improve the financial income. The University Endowment Fund can improve its asset allocation gradually in the future.