Abstract: In response to the quality fluctuations of crude gold powder obtained by reducing  gold chloride solutions with high impurity content,an experimental study was conducted on the direct reduction of crude gold powder from low-gold high-impurity chloride solutions using sulfur dioxide gas.The results showed that the gold grade of the obtained crude gold powder can reach more than 99.95 %,which is high-quality crude gold powder.This method is simple in steps,widely applicable,and has a high recovery rate of valuable metals.It especially overcomes the challenges of cold regions or low-temperature winters,ensuring the stability of the process.