Private equity fund is a fund engaged in private equity (non-listed company equity) investment. It mainly includes investing in the equity of non-listed companies or the non-publicly traded equity of listed companies. The pursuit is not equity income, but the profit from selling equity through equity transfer paths such as listing, management buyout and merger.

The risk of private equity investment first stems from its relatively long investment cycle. Therefore, if private equity funds want to make profits, they must make some efforts, not only to meet the financing needs of enterprises, but also to bring benefits to enterprises, which is bound to be a long-term process.

Moreover, the high cost of private equity investment also increases the risk of private equity investment. In addition, the high investment risk of private equity funds is also related to the poor liquidity of equity investment.