A new type of silver tin oxide contact material was fabricated by reaction synthesis processing and hot extrusion in the paper. The phases of AgSnO2 (10) after reaction synthesis processing were determined by X-ray diffraction. Electrical contact life of AgSnO2(10) were experimented with direct current. The surface morphologies of melting range was examined by scanning electron microscope(SEM), and the element compositions of surface were analyzed by electro-probe microanalyser (EPMA), the microstructure and composition of the surface of arc erosion are also analyzed. Four kinds surface morphologies of the AgSnO2(10) materials were classified.