Abstract:This year, China’s gold resources continue to decrease, ore gradually tend to?poor, fine, miscellaneous?.With the continuous development of modern mineral processing technology and the strengthening of the effective exploitation and utilization of low grade associated gold resources,attention has gradually been paid to the mining industry. Under the support of current economic technology in China, the mineral processing industry has done a lot of work in this area, which has made great progress in the recovery and utilization of low grade associated gold. Through the understanding of mineral structure properties of ore and the comparison of gold detection methods, we selected foam plastics to enrich flame atomic absorption spectrometry(FAAS). The results were verified by 2national standard materials. The precision and accuracy of RSD(n=11)were less than20%, the recovery rate of sample addition was 95.2～109%, achieved the detection of gold content.