In this study, the static and dynamic displacement responses due to vehicle loadings were measured by Video Gauge System(VGS) technique. The displacement response data were compared with data obtained from laser displacement sensors(PSM)&electronic distance measurement device(EDM) so that the static and dynamic behavior of the bridge under vehicle loadings was examined. The static and dynamic loading test for an earth-anchored suspension bridge, Nam-hae Bridge&Gwang-an Bridge, was performed using vehicles. The accuracy of the deflection measurement using the VGS in the load of the actual bridge was verified.