Although　many　studies　have　been　made　on　numerical　simulation　of　active　control　of　building　vibrations,　in　a　few　investigations,　experimental　research　on　active　control　are　conducted　and　the　control　objects　are　low-rise　and　small　scale　models.　In　this　paper,　Shaking　table　tests　of　a　1/8　scale　model　of　twelve-story　steel　frame　with　an　active　mass　damper　were　conducted　on　the　basis　of　simulation　analysis.　Fuzzy　logic　algorithm　and　H-infinity　static　output　feedback　algorithm　were　adopted　and　the　control　effects　were　compared.　The　results　showed　that　both　controllers,　using　the　measured　output　from　a　limited　number　of　sensors　installed　at　strategic　locations　of　the　structure,　were　effective　in　reducing　the　response　of　model　structure　under　seismic　excitation.　Compared　to　static　output　feedback　controllers,　the　control　effect　of　fuzzy　controllers　was　much　better.　Moreover,　modified　fuzzy　control　system　considering　the　contibution　of　multiple　inputs　showed　great　performance.　This　study　can　provide　a　necessary　foundation　for　practical　implementations　of　control　system　to　civil　engineering　structures.