Ti-W composites with different W additions were prepared by discharge plasma sintering (SPS) technique and their physical phase composition, microscopic morphology and fracture morphology were investigated. The results show that the W element can refine the composite powder particle size and promote the interfacial bonding, and the relative densities of Ti-W composites are increased from 92.3% to 98.5%, the hardnesses are increased from HV0.5 315 to HV0.5 740, and the compressive strengths are also significantly improved, among which the compressive yield strength of Ti-25W is as high as 2267 MPa.When the W content is lower, the lamellar α/β- Ti phase and precipitated nano-martensite play a major role in strengthening when the W content is low; when the W content is high, the unsolidified W particles and W-rich solid solution play a role in particle strengthening and solid solution strengthening. This study is of great significance for the development of high-strength titanium matrix composites.