That is to say, within a certain unit time (usually calculated on an annual basis), both trading parties buy and sell various commodities and import and export each other. Party A's export amount is greater than Party B's, or Party A's import amount is less than Party B's. This difference is called trade surplus for Party A, and vice versa. ..

Expanding the trade surplus of data is not necessarily a good thing. Excessive trade surplus is a dangerous thing, which means that the growth of domestic economy is more dependent on external demand than at any time in the past few years, and the dependence on foreign countries is too high.

The huge trade surplus has also brought about the expansion of foreign exchange reserves, brought greater appreciation pressure to the currency, and also given the international trade protectionist forces an excuse that the huge trade surplus reflects the undervaluation of the currency. This has increased the pressure of currency appreciation and financial risks, and increased the cost and difficulty of currency exchange rate mechanism reform. The relatively simple countermeasure is to stimulate domestic consumption.

References:

Baidu encyclopedia-trade surplus deficit