ZCuSn10P1 copper alloy was formed by using thixo-extrude process. The mechanical properties with tensile strength, elongation, Brinell hardness and Vickers hardness were measured by using uniaxial tensile test and hardness test. The fracture morphology was observed by scanning electron microscope and the fracture mode was analyzed. The influence of forming specific pressure on the mechanical properties of thixo-extruded copper alloy was investigated. The tensile strength increases first and then decreases with increasing forming specific pressure. While the elongation decreases with increasing forming specific pressure. The functional relationships between forming specific pressure and the tensile strength and elongation are parabolic and exponential, respectively. The tensile fracture mode of thixo-extruded copper alloy is hybrid fracture including intergranular fracture and ductile fracture. The variation of Brinell hardness increases first and then decreases with increasing forming specific pressure. The Vickers hardness of liquid is highest, followed by the solid-liquid interface, the lowest solid phase at the same process. The microhardness of the solid phase, the solid-liquid interface and the liquid phase both increases first and then decreases as the forming specific pressure increases. The mechanical properties of thixo-extruded copper alloy are higher than that of conventional casting. The process parameter at forming specific pressure of 250 MPa and extrusion rate of 15 mm/s is fine. And the tensile strength is 387 MPa, the elongation is 2.8%, the Brinell hardness is 128 HBW, respectively.