The work aims to further improve tribological properties of TiN coatings. W and Mo ion implantations at same doses were performed on ion-plated TiN coatings using metal vapor vacuum arc (MEVVA) source. Ion implantation depth, morphology, surface roughness, phase structure, and nano-hardness at different implantation depth of TiN coatings were analyzed with scanning auger microprobe (SAM), three-dimensional optical profilometer, X-ray diffractometer (XRD) and nano indentor, respectively. Tribological peroperties of TiN coatings were investigated on a ball-on-disk sliding tribometer. Also, wear appearance was analyzed with scanning electron microscopy (SEM) and three-dimensional optical profilometer. Content of W ions in TiN coatings was obviously higher than that of Mo ions after the same dose implantations. W and Mo ion implantations had less effect on surface morphology and hardness of TiN coatings. The XRD results showed that Ti2N phases appeared on TiN coatings after W and Mo ion implantations. The friction coefficient and wear rate of TiN coatings decreased to different extent after W and Mo ion implantations. Tribological properties of the ion-plated TiN coatings cab be improved by both W and Mo implantations. However, the Mo ion implantation is more conducive to reduction of friction coefficient while the W ion implantation is more conducive to redcution of wear rate.