This study discussed the preparation and property study of TiO2/PU composite by commercial roller blending. Three kinds of TiO2 were blended with PU. The TiO2/PU composite was prepared with varing parameters, such as roller temperature, roller rate, and TiO2 content. After ultraviolet exposure 300 h, we found TiO2 content was the most important control parameter for the preparation of TiO2/PU composite. The characteristics of the TiO2/PU composite were evaluated by Fourier Transform Infrared spectra (FT-IR), thermogravimetric analysis (TGA), tensile strength testing mechine, field emission scanning electron microscope (FE-SEM), and chromatic aberration meter. The morphology, thermal, mechanical properties, and color difference of TiO2/PU composite were studied.