QDII funds belong to overseas investment funds. There are orders in this country, and the investment target is fixed. In principle, the investment purpose of QDII funds is to diversify the risks in the domestic market. If short selling is carried out, it will become an empty talk for the diversification of risks. It is also not conducive to the overseas operation of RMB, and it will also lead to the deficit outflow of foreign exchange and the net outflow of RMB, which violates the original intention of the state to allow QDI i funds to open.