In the case of weak market, on the one hand, the T0 trading system of gold is conducive to reducing the investment risk of investors, on the other hand, it also provides investors with more short-term trading opportunities and helps investors improve their income level. The implementation of T0 revolving transaction can bring more stamp duty income to the country, more short-term opportunities to the market, more commission income to securities companies, help to form a win-win situation, and stimulate the weak market structure of light delivery to some extent.