Promising catalysts for the hydrogenation of CO2 to methanol are highly desired to address the pressing issue of rising carbon emissions. In2O3 has gained attention as a powder catalyst due to its high selectivity for methanol synthesis from CO2 reduction. Since the important reactions take place at the interface,understanding the fundamental properties and behavior of molecular species on well-defined surfaces is crucial for designing model catalysts. Here, the adsorption of CO2 mol- ecules on the In2O3(111) surface was investigated in detail at the atomic scale and under ultra-high vacuum (UHV) conditions via non-contact atomic force microscopy (nc-AFM), and compared to results from temperature programmed desorption (TPD) and x-ray photoelectron spectroscopy (XPS) measurements, as well as density functional theory calculations (DFT).