Abstract: Considering the effects of primary structure on the seismic response of the point-supported glass wall with single-layer cable net, the method to analyze its seismic response under vertical multi-point excitation of primary structure is proposed. It combined the input method with multi-point excitation, with theoretical and numerical validation, to consider the effects of primary structure on the seismic response. With this method and the assumptive model for second input, the effects of three parameters of second input and damp were investigated in the seismic response analysis, concluding that the effects of primary structure on cable net will be more prominent with the increase of input and storey drift, as well as the decrease of their difference in basic frequency. In the end, the proposed method was applied to several examples to imply the contribution of primary structures to the seismic response, which can serve later practical design of similar cable net glass wall.