Gold smelting is the last process in gold production, and its product is finished gold. Smelting can be divided into roughing and refining. Refined and roughened products are alloys (commonly known as synthetic gold). Most of the gold in China's gold mines is synthetic gold, which is directly sold to banks. Gold rich ore blocks and various gold concentrates are transported to non-ferrous smelters for processing and refining finished gold (commonly known as content gold).

In the past 40 years since the founding of the people's Republic of China, gold smelting and comprehensive recovery have developed rapidly, the level of smelting technology and process equipment has been continuously improved, and the smelting cost has been reduced day by day, which has promoted the development of gold production.