The work aims to reduce the reflectance on the surface of titanium and explore a new titanium surface blackening process. The surface of titanium metal was blackened by femtosecond laser technology. The surface morphology and reflectivity of the samples under different experimental conditions were studied by changing the parameters like laser power, scanning speed and the repetition rate. The microstructure of the sample was characterized by scanning electron microscopy and the reflectance curve of the sample was measured by spectrophotometer. The reflectivity of the sample reached the lowest when the laser power was 6 W, the scanning speed was 100 mm/s and the repetition rate was 200 kHz. The average reflectance was 2.66% in the wavelength range of 250 nm to 800 nm. The microstructures of different morphologies on the metal surface of titanium can be obtained by changing laser parameters. The reflectivity of the samples obtained under different process parameters is different, but both can reduce the reflectivity of the titanium surface.