This　study　investigates　the　fracture　behavior　of　brittle　solids　with　combined　defects　by　prefabricating　internal　cracks　in　glass　materials　using　three-dimensional　internal　laser-engraved　crack　(3D-ILC)　technology.　The　results　of　physical　and　numerical　experiments　indicate　that　under　biaxial　compression,　cracks　first　appear　on　the　surface　of　the　cavity,　followed　by　the　propagation　of　the　prefabricated　cracks.　During　propagation,　these　two　cracks　attract　each　other,　ultimately　leading　to　crack　coalescence.　As　the　geometric　distribution　of　the　combined　defects　changes,　the　propagation　direction　of　the　prefabricated　cracks　deflects　to　varying　degrees　as　is　to　be　expected.　The　failure　process　of　the　specimens　with　combined　defects　was　a　mixed-mode　I-II-III　fracture.　This　research　provides　experimental　and　theoretical　references　for　the　study　of　crack　propagation　in　rock　materials　containing　combined　defects.