The hydrogenation of CO2 to methanol represents a significant pathway for mitigating greenhouse gas emissions and achieving carbon neutrality, wherein the design of efficient catalysts is crucial for enhancing reaction efficiency. Morphological control of catalyst supports constitutes an effective strategy for optimizing catalytic performance; however, comprehensive investigations into the influence of ZnO support morphology on CO2 hydrogenation reactions remain insufficient and warrant further exploration.Finally, Chestnut-like ZnO exposed more polar facts is used to loaded Cu and Pd-Cu to prepare Cu/ZnO and Pd-Cu/ZnO catalysts. The catalysts are characterized by complementary techniques, such as X-ray diffraction (XRD), scanning electron microscopy (TEM), X-ray photoemission spectroscopy (XPS), H2-temperature programmed reduction (H2-TPR), H2/CO2temperature programmed desorption (H2-TPD/CO2-TPD), and evaluated for CO2 hydrogenation to methanol. The results indicate that the interaction between Cu and ZnO is enhanced due to the morphology effect of chestnut-like ZnO, which improve activity in CO2 hydrogenation to methanol. After the doping of Pd, the Pd-Cu/ZnO catalyst shows the best performance with a methanol yield of 0.52 g/(gcat·h). XRD，XPS and HRTEM demonstrate the formation of PdCu alloy and a high dispersion of Cu and PdCu particles supported on chestnut-like ZnO. H2-TPD reveals the spillover of hydrogen from Pd to Cu/ZnO.