The invention belongs to the field of alloy material production, and particularly relates to tungsten-copper alloy and a production method thereof. The tungsten-copper alloy and the production method thereof aim to solve the problem that alloy structures are not uniform because of two-phase segregation of tungsten and copper in tungsten-copper alloy produced through existing methods. According to the production method, after tungsten powder undergoes plasma spheroidization, copper powder serves as an inducer for chemical copper plating, then compression molding, pre-sintering and tungsten-copper infiltration are carried out, and finally the tungsten-copper alloy with uniform structures can be obtained. According to the method, the shape of the tungsten powder is changed into a spherical shape from a polygonal shape, the dispersity is improved, and uniform distribution of the tungsten and the copper in the chemical copper plating process is guaranteed. According to the produced alloy material, two-phase composition segregation of the tungsten and the copper can be effectively prevented, the thermal conductivity, the electrical conductivity, the arc ablation resistance, the high temperature performance, the plasticity and the machinability of the alloy material are greatly improved, and the alloy material can be widely applied to heat sink materials, encapsulating materials and high explosive anti-tank cartridge liner materials.