Taking a double-tower cable-stayed bridge as an engineering background, to study the influence of ponding effect on seismic responses of the cable-stayed bridge under near-fault ground motions, the ponding response of the main bridge and approach bridge of the cable-stayed bridge under near-fault ground motions and its effect on the bridge seismic response is investigated, and it is compared with the seismic response of the cable-stayed bridge under far-fault ground motions, the influence of viscous dampers and elastic cables on the ponding effect of the cable-stayed bridge under near-fault ground motions is studied. Compared with non-pulse ground motions, the results show that the main bridge and approach bridge are more likely to pond under near-fault pulse-type ground motions, and the influence of the ponding effect on the seismic response of the cable-stayed bridge is more significant. When viscous dampers and elastic cables are installed, the ponding of the main bridge and approach bridge still occur during pulse period, but the ponding response decreases, the influence of the ponding effect on seismic responses of the cable-stayed bridge under near-fault ground motions is significantly reduced, and the ponding effect should be considered when the seismic reduction rate of cable-stayed bridges under pulse-type ground motion is discussed.