Titanium greases were prepared by using titanium isopropoxide, organic acid and polar solvent as raw materials. The effects of the type of organic acids and base oils, the composition and the process condition on the properties of titanium greases were discussed. The results show that organic acids have large influence on the preparation of titanium greases, and the thickening ability is different for titanium soap on different base oils. By using stearic acid as organic acid and paraffine base oil as base oil, and selecting the highest refining temperature of 180 to 200 ℃ and the slow cooling method, the prepared grease has good comprehensive properties, its drop point is about 280 ℃, which is higher than the general greases thickened by other single soaps. The infrared spectrum analysis result shows that the titanium soap is formed by using this process, and the problem of residual acid is avoid.