Abstract: Hyperspectral remote sensing （HRS） technology，with its high spectral resolution and extensive spectral coverage，demonstrates significant potential in geological prospecting. Focusing on the Qianhongquan gold deposit in the Beishan orogenic belt，Gansu Province，this study conducted altered mineral mapping and component analysis，using HRS data from the AHSI sensor on the ZY-1 02D satellite and the self-developed hyperspectral mineral mapping technique，GeoAHSI，revealing their spatial distribution characteristics. Besides，ground-based spectral measurements were conducted on typical profiles to validate the spectral data，thereby assessing the reliability of the hyperspectral mineral mapping results. The results indicate that the primary altered minerals in the Qianhongquan gold deposit and its surrounding rocks include sericites （low-aluminum，medium-aluminum，high-aluminum，and iron-rich muscovites），calcites，dolomites，epidotes，and chlorites. Their distribution is closely related to ductile shear zones，with the distribution of sericites，chlorites，and epidotes being particularly significant within these zones. This spatial correlation provides critical indicators for regional prospecting. Additionally，it was observed that the 2 200 nm absorption feature of sericites and the 2 250 nm absorption feature of chlorites exhibit marked enrichment in silicon （Si） and iron （Fe） around ore bodies，which is closely correlated to the chemical compositions of the minerals. By enhancing the identification of weak spectral features，this study successfully applied HRS technology to mineral identification and spatial distribution analysis. These findings provide a scientific basis for further exploration of the Qianhongquan gold deposit and offer valuable references and guidance for the application of HRS in similar deposits.