De-dollarization means that a country or region reduces its dependence on the US dollar and takes measures to promote the use of its own currency in the economy. Its advantages and disadvantages are as follows: Advantages: 1. Strengthen monetary sovereignty: dollarization helps countries maintain monetary sovereignty and reduce external economic risks. 2. Economic stability: reducing dependence on the US dollar can reduce the impact of foreign exchange fluctuations on the economy and reduce financial market risks. 3. Promote domestic economy: De-dollarization will help encourage domestic enterprises to trade in local currency and improve their economic independence. 4. Diversify risks: Reducing dependence on the US dollar can reduce foreign exchange risks and increase opportunities for trade and financial cooperation with other countries. Disadvantages: 1 Declining global influence: reducing the use of the US dollar may weaken the country's influence in the international financial system and face geopolitical challenges. 2. Transformation cost: De-dollarization requires a lot of resources and time to adjust the financial system and business operation mode, which may lead to short-term uncertainty and economic costs. 3. International trade pressure: reducing dependence on the US dollar may lead to trade friction with the United States and other countries that use the US dollar, affecting the balance of international trade. 4. Financial liquidity: If there is no good alternative currency or financial mechanism, dollarization may lead to insufficient financial liquidity and unstable financial markets.