The Organization of Petroleum Exporting Countries is an organization composed of oil exporting countries, and its member countries control most of the world's oil reserves and production. The important position of OPEC members in the global oil market, output adjustment and supply policy have an important impact on international oil prices. When OPEC members decide to increase or decrease crude oil production, it will directly affect the global oil supply. Production cuts by the Organization of Petroleum Exporting Countries mean a decrease in supply, which leads to an increase in international oil prices. On the contrary, the Organization of Petroleum Exporting Countries increased production and supply, which led to a decline in international oil prices. The supply control policy of the Organization of Petroleum Exporting Countries largely determines the trend of international oil prices.