TiN thin films are widely used as a coating material, due to their good mechanical and conductivity properties, high thermal properties, strong wear, erosion, and corrosion resistance. In spite of these good mechanical properties, turbine blades always fail during use. The corrosion resistance of the TiN coatings is increased by a uniform and dense structure. One researcher determined that, for TiN ion plated ornaments, it was good to have uniform and dense structure which was (200) texture, and bad to have an open columnar structure which was (111) texture. Another researcher suggested that TiN films with a strong (111) orientation have better wear resistance. Thus, the longevity of TiN coated parts is related to the texture of the TiN layer that coats them, and, most importantly, to the microstructure of the TiN layer. As well as texture, the corrosion of TiN thin films was related to pinhole densities. Defects such as pinholes or cracks expose the less noble substrate underneath to a corrosive ambient. The microstructure of these thin films is also different when produced under various processing conditions. In this paper, we review and study the relationships between texture and longevity of TiN thin films. The flatness of (012) texture surface of TiN thin films is flatter than that of (111) texture surface. The longevity of TiN coated products is influenced by the properties of wear, erosion, and corrosion resistance of TiN thin films, which in turn, are related to their texture, pinhole densities, density of structure, and surface flatness.