Graphene oxide/ titanium dioxide (GO-TiO2) composites were prepared by one-step hydrothermal synthesis method using graphene oxide and tetrabutyl titanate as raw materials. The effects of different mass ratios of tetrabutyl titanate on the microstructure and properties of graphene oxide/titanium dioxide (GO-TiO2) composites were studied. The microstructure，phase composition, structure, light absorption performance, thermal stability of the composites were analyzed by scanning electron microscope(SEM), Transmission electron microscope(TEM), X-ray diffraction(XRD), Infrared spectroscopy(IR) and Raman spectra(RS), Sultraviolet visible spectroscopy(UV-vis), thermal gravimetric analyzer(TGA), respectively. The experimental results indicate that the increase of tetra-butyl titanate content is conducive to the homogeneous dispersion of GO-TiO2 composites and enhance the thermal stability of GO-TiO2 composites. However, the excessive tetra-butyl titanate will decrease the dispersion, light absorption performance and thermal stability of GO-TiO2 composites. When the GO was 320 mg and the tetrabutyl titanate was 100 mL in the precursor solution, the obtained composite material exhibited superior surface properties, optical properties and thermal stability. TiO2 was uniformly dispersed on the surface of the composite material. The composite material has high recombination and few surface defects and ID/IG was 0.91. The absorption edge of TiO2 in the composite was bathochromic-shifted to the visible light range and the absorption peak was significantly enhanced in the visible light range of 440-800 nm. The thermal stability of the composite was 32.66 % higher than that of GO at 800 ℃.