TC17 titanium alloy samples were prepared by laser additive manufacturing technology. The effects of different solution aging temperature and heat treatment on microstructure, microhardness and tribological properties of TC17 titanium alloy were studied. The results show that the microstructure is transformed into coarse basket microstructure after solution aging treatment. With the increase of solution temperature, the primary α phase (αp) coarses gradually and the volume fraction decreases. After aging, the volume fraction of secondaryα phase (αs) precipitates from the β transition microstructure. With the aging temperature increasing, the thickness of the secondary α photographic layer increases obviously. After solid solution aging heat treatment, the microhardness increased obviously. After 840 ℃/1 h,AC+800 ℃/4 h,WQ+630 ℃/8 h,AC solution aging treatment, the microhardness reached the highest 447.6 HV, 14% higher than that of deposition, and higher than the forging standard (400 HV). The lowest average friction coefficient is 0.21, which is 34% lower than that of the deposition, and the wear amount is 3.4 mg at least, which is about 1/3 of that of the deposition (9.7 mg), showing good anti-wear performance.