Original　fracture　structures　always　present　discontinuity　in　the　real　rock　mass,　and　many　invisible　fractures　hide　inside　the　rock　mass,　which　may　cause　serious　engineering　safety　issues.　To　mimic　the　true　3D　fracture　structures　through　the　experimental　method,　the　gypsum　rock-like　samples　containing　both　2D　through-type　and　3D　internal-type　preset　flaws　are　prepared,　and　multiple　sets　of　inclination　angles　of　the　twin　parallel　flaws　are　set　in　the　test.　By　applying　the　AE　and　DIC　monitoring　technologies　during　the　uniaxial　compression　tests,　the　main　results　are　as　follows:　(1)　The　flaw　inclination　angle　presents　a　direct　influence　on　the　surface　cracks　distribution,　maximum　principal　strain　field,　and　the　density　of　secondary　failure　in　the　middle　rock;　(2)　AE　events　initially　distribute　around　the　internal　3D　preset　flaw,　while　the　gradient　inclination　angle　shows　a　slight　impact　on　the　events＇　location　before　reaching　the　UCS　status　of　samples;　(3)　mutations　in　b-values　and　S　values　can　serve　as　evidence　for　predicting　local　damage,　and　the　final　failures　quickly　form　at　various　scales　and　energy　levels;　(4)　when　the　statistical　analysis　grid　is　divided　sufficiently,　the　data　window　width　and　moving　step　length　have　little　impact　on　the　evaluation　results,　while　the　recommended　bin　width　of　event　magnitude　is　0.5　or　1.0.