The design of suspension bridge with longer span length has urged special attention to the prevention of the flutter occurrence. There has been applied and proposed numerous ideas in various shapes to realize satisfactory stability of the bridge system against the stormy wind, while they can be summarized into two following groups; 1) Aerodynamic control, for example, like adoption of the streamlined deck, the grating, the air gap and aerodynamic additional devices to optimize the flow around the structure 2) Increase in the stiffness of the whole bridge system such as the cross cables and wire ties mainly to push up the natural frequencies. New idea to control the super long span suspension bridge behavior will be proposed under the structural as well as aerodynamic (aero-elastic) detailed investigation in this paper as the spindle-type suspension bridge. Some analytical results of numerical response estimate will be also introduced under the idea of the flutter mode shape control concept.
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