Abstract:Taking the data of 001~010 days in 2016 as example, the influence of Time and Frequency Transfer with GPS Common-view about four station to station based on three different ionospheric models were introduced in this paper. The RMS result indicates that accuracy under Klobuchar ionospheric model is the worst, the accuracy under Grids ionospheric model is the best, except NANO and ALBH station to station, the others accuracy under Ion-free combination ionospheric model are as well as Grids ionospheric model.