In the present study, co-impregnated tungsten and silver onto nickel based catalysts have been investigated. The influences caused by tungsten modification were inspected by XRD, XPS, TPR and TEM with Elemental Mapping from SEM. the result revealed similarity in terms of physicochemical properties. By adding trace of tungsten subsidiary to silver, it was able to reach as high performance as the catalyst with silver only. The modified catalysts showed enhanced stability and reactivity by forming large Al2O3 structure.