Non-agricultural big data are three data released by the Bureau of Labor Statistics of the US Department of Labor: non-agricultural employment, employment rate and unemployment rate. Compared with small non-agricultural data, large non-agricultural data can more intuitively reflect the current economic situation in the United States. Non-agricultural data will be released at 20:30 on the first Friday of each month, two days later than small non-agricultural data. Small non-agricultural data are often released on the first Wednesday of each month at 20: 15. Investors usually wait for the data to be released at this time, and judge the specific trend of gold prices according to the data, thus making a profit. The impact of non-agricultural data on the gold market mainly focuses on these two points. The employment number, employment rate and unemployment rate of non-agricultural population in the United States can directly reflect the development and growth of manufacturing and service industries in the United States. The better the economic development, the lower the price of gold at this time, while the poor economic development can make the price of gold rise to a certain extent. Generally speaking, non-agricultural data is just a data, so in practice, large and small non-agricultural data can affect the trend of the gold market, but it can't really determine the trend of the gold market.