Crystallization in the heat-affected zone with nominal composition of Zr55All 0Ni5Cu30 and Zr65Al7.5Ni10Cu17.5, which has different glass forimg abilities, is investigated during pulsed Nd:YAG laser remelting processing. It is found that the crystallization in the heat-affected zone for Zr65Al7.5Ni10Cu17.5 alloy with low glass forming ability is more severe than that for Zr55All 0Ni5Cu30 alloy. There are only small number of micron-scale spherical grains sparsely formed in heat-affected zone, even Zr55All0Ni5Cu30 alloy is laser remelted repeatedly by four times. However, the heat-affected zone is almost fully covered with the spherical grains when Zr65Al7.5Ni10Cu17.5 alloy is laser remelted once. When Zr65Al7.5Ni10Cu17.5 alloy is laser remelted by four times, the size of spherical grains increase obviously, and there exhibits a radial dendritic growth in the spherical grain.Crystallization in the heat-affected zone for bulk metallic glasses during pulsed Nd:YAG laser remelting mainly depends on the glass forming ability of the alloy, and the high glass-forming ability is in favor of keeping the heat-affected zone under amorphous state.