The　Zr55Al10Ni5Cu30　quaternary　alloy　rods　with　3　mm　in　diameter　were　prepared　by　copper　mold　with　suction　casting　method　in　water　cooling　copper　crucible　at　different　pouring　temperature.　Effects　of　pouring　temperature　on　glass　forming　ability　(GFA),　mechanical　properties　and　microstructure　of　Zr55Al10Ni5Cu30　bulk　metallic　glass　were　investigated.　It　shows　that　the　GFA　and　thermal　stability　of　as-cast　Zr55Al10Ni5Cu30　alloy　increase　with　the　increase　of　pouring　temperature.　Supercooled　liquid　region　ΔT　x　and　parameter　γ　increase　from　73　K　to　89　K,　and　0.413　to　0.417,　respectively　when　the　casting　voltage　increases　from　7　kV　to　10　kV.　Also　it　is　found　that　the　compressive　strength　increases　and　the　plasticity　slightly　decreases　when　pouring　temperature　increases　in　a　certain　extent.　However,　the　compressive　strength　and　plasticity　simultaneously　increase　when　casting　temperature　increases　to10　kV.