The　span　of　the　suspend-dome　of　the　badminton　arena　for　2008　Olympic　Games　is　93　m,　and　the　average　steel　cost　is　optimized　down　to　about　60　kg/m.　The　vibratory　strain　gauge　and　Total　Station　Instruments　are　used　to　monitor　the　force　of　the　members　and　tension　of　cables.　Displacement　of　joints　are　monitored　during　construction　and　the　data　shows　that　the　force,　displacement　and　cable　tension　are　all　with　in　reasonable　range.　With　the　cable　tension　as　the　main　control　parameter,　the　vertical　displacement　of　joints　as　the　second　control　parameter　and　the　members＇　force　being　considered　simultaneously,　the　cable　tension　reaches　the　design　requirement.