A microwave-assisted heating approach was developed to fabricate SnO2 · TiO2 nano-composite in an aqueous solution of sulphuric acid in the presence of SnO2 nano- powder and titanium sulfate. Powder X-ray diffraction (XRD) pattern indicates that the products were a composite with both of anatase-type TiO2 and tetrahedral SnO2. The products were also characterized by transmission electron microscopy (TEM), photoluminescence (PL) spectra. The photo-catalytic property of the as-prepared sample has also been studied. The result indicates that the as-prepared sample is a good photo-catalyst.