Individual investors also need to make a suitable investment portfolio under limited conditions to avoid investment risks. Therefore, the size of the portfolio can neither be excessively dispersed nor excessively concentrated. There is an optimization among portfolio size, risk and return.

Based on the harmony search algorithm, the working time of graduation project (thesis) is11June 2 to11September 26. Third, graduation project, relying on Internet technology, personal financial management system based on portfolio came into being.