On the basis of the original design of Ruck Bridge by Mr. Lin Tongyan, this paper modifies the single-curved-deck cable-stayed bridge to be an elliptical double-curved-deck cable-stayed bridge, with the duck-egg-arched bridge tower and four-cable-plane spatial cable nets, to form the double curved deck and spatial four-cable-plane cable-stayed bridge for the canyon-river topography, so as to improve the structural force performance of the curved-deck cable-stayed bridge, promote the traffic function and improve the landscape effect. Combined with the 400m-span New Ruck Cable-stayed Bridge, engineering parameters are designed, a Midas finite element analysis model is established, and the dynamic modal analysis is carried out to verify the structural superiority of the double curved deck and four-cable-plane spatial cable-stayed bridge.