Spatial　cable-truss　structure　without　inner　ring　cables　(SCSWIRC)　belongs　to　tensile　structure,　which　is　composed　of　three　kinds　of　cable,　strut　and　stiff　ring-beam,　and　its　stiffness　generates　from　the　pre-stresses　of　cables.　The　manufacturing　errors　of　the　three　kinds　of　components　determine　the　final　formed　state　and　ultimate　bearing　capacity,　so　it　is　essential　to　study　the　influences　of　manufacturing　errors　of　three　kinds　of　components　on　the　mechanical　property　of　structure.　The　influences　of　manufacturing　errors　on　SCSWIRC　have　been　studied　from　four　aspects　that　include　elongation　or　shortening　of　cable　and　strut,　different　pre-stresses　states,　different　cable-truss　frames　and　external　loads.　The　relations　of　manufacturing　errors　and　four　aspects　have　been　studied　based　on　finite　element　model　and　experimental　model.　The　results　show　that　the　elongation　and　shortening　of　components　has　little　influence　on　sensitive　indexes　of　components　when　the　elongation　or　shortening　of　components　is　the　same.　The　manufacturing　errors　have　the　different　influences　on　the　mechanical　property　of　structure　under　the　different　pre-stress　states.　The　closer　cable-truss　frame　is　to　the　error　position,　the　larger　influence　the　error　has　on　cable-truss　frame.　The　external　loads　have　not　changed　the　basic　mechanical　property　of　SCSWIRC,　but　the　external　loads　make　upper　chord　cables　easier　to　loose　and　make　sensitive　indexes　change　more　greatly.　The　research　contents　reveal　the　influences　of　manufacturing　errors　on　the　mechanical　property　of　SCSWIRC　from　the　four　aspects.Copyright　(c)　2023　by　The　Hong　Kong　Institute　of　Steel　Construction.　All　rights　reserved.