Titanium diboride based composites, good candidates for contact materials, have high hardness, Young’s modulus,high temperature stability, and excellent electrical, thermal conductivity. However a good interface of TiB2/Cu isvery difficult to achieve for oxidation of TiB2. To avoid this oxidation behavior, the in situ combusting synthesistechnology, SHS, was used to prepare TiB2/Cu composite. The characters of Ti-B-xCu SHS were studied in detail,such as combustion temperature, products phases and grain size. Based on the experimental results a propertechnology way of self-high temperature synthesis plus quick press (SHS/QP) was determined and compact TiB2/Cucomposites with relative density over than 97 pct of the theoretical were fabricated by this method. The propertiesand microstructures of these TiB2 based composites were also investigated. Titanium diboride based composites, good candidates for contact materials, have high hardness, Young’s modulus, high temperature stability, and excellent electrical, thermal conductivity. However, a good interface of TiB2 / Cu is difficult difficult to achieve for oxidation of TiB2. behavior, the in situ combusting synthesistechnology, SHS, was used to prepare TiB2 / Cu composite. The characters of Ti-B-xCu SHS were studied in detail, such as combustion temperature, products phases and grain size. Based on the experimental results a propertechnology way of self-high temperature synthesis plus quick press (SHS / QP) was determined and compact TiB2 / Cucomposites with relative density over 97 pct of the theoretical were fabricated by this method. The properties and microstructures of these TiB2 based composites were also investigated .