The evolution of the world currency system began after the establishment of the gold standard in the United Kingdom, and countries around the world shifted from the gold-silver complex to the gold standard, but eventually collapsed due to internal contradictions. Then the establishment of the Bretton Woods system, which collapsed shortly afterwards, formed the Jamaican system, and the oil-dollar system was born, eventually forming the current pure credit international currency system. This paper investigates the roots of the evolution of its currency system, and considers that the fixed currency parity and the money supply are unreasonable and cannot meet the needs of economic development. Therefore, it proposes a world new currency system idea—the gold-silver-banknote ternary currency system. The core of the system uses three currencies: gold, silver, and banknotes, and floating parities are used between different currencies. Finally, the impact and influence of the new system on the current monetary system are expected. <<