Combined with engineering applications，a comparative calculation was conducted on the strength of the grid structures with equal-pitch spiral ribs，equal-helix-angle spiral ribs and geodesic spiral ribs on cone section.The results show that under the condition of identical grid structure parameters，the load bearing capacities of three spiral rib grid structures are roughly equivalent.Therefore，the forming process can be selected based on engineering practice from the perspectives of simple process and low manufacturing cost.Taking advantage of the characteristics of non-planar curves of the conical spiral and the ellipsoidal geodesic，the fiber tow winding trajectories of the double-head closure composite grid structure with geodesic spiral ribs are accurately calculated，which realizes the continuous and automated winding forming of fiber tows without overlapping or omission，improves the forming quality and consistency of the structure，and enhances the quality and load-bearing capacity at the nodes.The calculation of the fiber tow winding trajectories for two opposite large-end composite grid structures with geodesic spiral ribs save materials and improve production efficiency.