Photoacoustic technology, as a non-destructive detection method that integrates the advantages of both optical methods and acoustic techniques, has been widely applied in various fields, including spectral analysis, imaging diagnostics, and material testing. Benefiting from its broad spectrum and high resolution, the dual-comb has attracted increasing attention in the field of photoacoustic measurements in recent years. However, current researches are primarily focused on absorption spectroscopy, especially for gas detection, while studies on solid materials remain limited. To overcome this limitation, a PA measurement method using the dual-comb light source as the excitation is introduced. Based on two SESAM-based mode-locked Yb3+ doped fiber lasers with tunable repetition rates as seeds, 775 nm high-coherence dual optical frequency combs are generated via nonlinear frequency conversion, including OPA and SHG. Using high-purity (99.99%) tungsten as the target sample, the photoacoustic signal excited by the dual-comb is recorded to measure tungsten′s absorption spectrum at 775 nm, and the corresponding relationships between the excitation signal and the PA signal are validated in both the time and frequency domains. Furthermore, the system is applied to measure the morphological features of tungsten spheres (diameter 168.60 μm) and tungsten wires (diameter 1 143.03 μm) using a three-dimensional translation stage. The relative errors between the measured values and the actual dimensions are calculated to be 11.44% and 3.552%, respectively. For the first time, the photoacoustic spectroscopy and morphological measurements of solid samples are realized by dual-comb and PA effect, confirming the feasibility of the dual-comb for solid morphology measurements and providing a novel technical approach for non-destructive testing of solid materials and devices.