Abstract: The uniaxial compression test of red sandstone specimens was carried out to study the application of double difference location method in rock AE localization. The CCD camera collected the speckle image during the loading process, and DSCM (Digital Speckle Correlation Method) was used to calculate the rock deformation field. At the same time, the rock AE signal was collected, and the AE localization map was calculated by the rock double difference location method. The spatiotemporal evolution of AE was analyzed. The results showed that the rock double difference location method had a good application effect in AE localization. The AE event region was basically consistent with the deformation concentrated region of the rock deformation field, and the evolution of the AE event region was well matched with the evolution of the deformation field during loading.