China's trade balance refers to the transactions of imported and exported goods and services between China and other countries and regions. The trade balance is one of the important indicators to measure a country's economic development level, and also one of the important bases to measure a country's balance of payments and competitiveness.

China's trade balance has developed rapidly since the reform and opening up, especially in the past few decades, China has become one of the world's largest exporters. According to the data released by the National Bureau of Statistics, China's total import and export volume will reach 4.76 trillion US dollars in 2021, of which the total export value will be 2.75 trillion US dollars and the total import value will be 2.01 trillion US dollars. This shows that China is playing an increasingly important role in global trade.

China's balance of trade surplus has also attracted much attention. A surplus means that a country's total exports are greater than its total imports, which means that the country's net exports are positive. China's trade surplus has been relatively large for a long time, which shows that China's export competitiveness is relatively strong. However, some economists and policy makers believe that such a large trade surplus will lead to China's excessive foreign exchange reserves, which may pose some potential risks.

In addition to the surface data of the trade balance, there are other factors that need to be considered, such as trade policy, exchange rate changes, market demand, etc. In addition, the trade balance also includes transactions in trade in services, financial accounts and transfer payments, which will also have an impact on the balance of the trade balance.

In general, China's trade balance is an important indicator of China's economic development and international competitiveness. The government and enterprises can maintain and improve trade competitiveness by formulating effective trade policies, improving product quality and innovation capabilities, so as to achieve sustainable economic development and trade balance.