Shenke　International　Building　is　located　in　Shenyang　City,　the　south　of　Shenzhou　Road,　and　the　east　of　Wanshou　Temple　Street.　Its　planform　is　complicated　and　the　excavation　depth　is　high.　In　this　paper,　FLAC　3D　is　used　to　analyze　the　3D　numerical　simulation　of　the　foundation　pit　supporting　and　the　surrounding　buildings　of　Shenke　International　Building.　The　deformation　characteristics　of　the　foundation　pit　excavation　process　are　analyzed.　Through　the　above　analysis,　the　foundation　excavation　under　complex　environment　to　evaluate　the　feasibility　of　construction,　also　for　three-dimensional　numerical　simulation　research　in　the　future　in　the　application　of　deep　foundation　pit　engineering　has　made　the　beneficial　attempt.(1)