Before　being　tensioned,　the　stiffness　of　the　upper　reticulated　shell　of　a　prestressed　suspended　dome　is　small,　and　the　lower　cable-strut　system　is　completely　flexible.　The　shape　and　stiffness　of　the　structure　constantly　change　during　the　construction　process;　therefore,　a　construction　experiment　needed　to　be　performed　to　ensure　the　success　and　safety　of　the　tensioning　process　for　practical　engineering.　A　tensioning　experiment　was　performed　on　a　reduced　scale　model　of　a　large-span　suspended　dome.　The　safety,　internal　forces,　joint　displacements,　and　cable　tensions　during　the　tensioning　process　were　studied.　The　effects　of　the　sequence,　times,　and　magnitudes　of　the　loop　cable　tensioning　were　studied.　The　unfavorable　factors　of　friction　loss　at　the　cable-strut　joint,　tensioning　sequence　loss,　and　out-of-sync　tensioning　on　the　tensioning　points　were　evaluated,　and　measures　to　reduce　the　friction　loss　were　then　proposed.　Two　tensioning　schemes　were　tested,　compared,　and　used　to　predict　the　potential　difficulties　in　practical　engineering　construction.　An　optimized　tensioning　scheme　was　developed　for　practical　engineering.