The numerical simulation on wind tunnel test of the iced transmission line and parameters analysis is the major means of obtaining aerodynamic parameters. The numerical simulation of the aerodynamic parameters of iced transmission line was carried out. The geometry modeling, meshing, selection of boundary conditions, turbulence model selection, and so on, were discussed to set the solving parameter. The effect of first layer thickness, layer number, thickness, shape, and encryption stripe of the encrypted area on the result of calculation was clarified. Then, the suitable grid model was built. The analysis of the k-ε, the k - ω, the Realizable k -ε, the Reynolds stress and the SST k -ω turbulence model show that the k - ω is more sensitive to parameters although it can be well used to simulated the aerodynamic characteristics. The k -ε turbulence model is the most reasonable model to simulate aerodynamic parameters of iced transmission line.