Coral-like　porous　Si　was　fabricated　through　the　dealloying　of　a　laser　remelted　as-cast　AlSi12　alloy(Al-12　wt　%　Si).　The　porous　Si　was　composed　of　interconnected　micro-sized　Si　dendrites　and　micro/nanopores,　and　compared　to　flaky　Si,　which　is　fabricated　by　direct　dealloying　of　the　as-cast　AlSi12　alloy.　The　structure　of　the　porous　Si　was　attributed　to　the　dendritic　solidification　microstructure　formed　during　the　laser　remelting　process.　The　micropore　size　of　the　porous　Si　decreased　from　4.2　mu　m　to　1.6　mu　m　with　the　increase　in　laser　scanning　velocity,　indicating　that　the　morphology　of　porous　Si　could　be　easily　altered　by　simply　controlling　the　laser　remelting　parameters.　The　coral-like　porous　Si　provided　enough　space,　making　it　promising　for　high-performance　Si-based　composite　anode　materials　in　lithium-ion　batteries.　The　proposed　hybrid　method　provides　a　straightforward　way　of　tuning　the　porous　structure　in　the　dealloyed　material.