Laser flash method is widely used to measure thermal conductivity at present. In this paper, the principle of laser flash method for measuring thermal diffusivity and thermal conductivity is introduced firstly. The thermal diffusivity and thermal conductivity of Zr-based bulk metallic glass at different temperatures under different referenced standard samples are studied. The results show that: the thermal diffusivity of zirconium-based metallic glass increases gradually with the increase of temperature under the same referenced standard sample; at the same temperature, the thermal diffusivity measured under different referenced standard samples is the same; at the same temperature, the thermal conductivity is the lowest under Cu standard referenced sample, is the highest under 9606 standard referenced sample, is between the above two results under 310 standard referenced sample; the thermal conductivity of Zr based amorphous alloy increases with the increase of temperature. For measuring the thermal conductivity of zirconium-based metallic glass by laser flash method, using Cu standard sample as the reference is more accurate.