The invention provides an integrated weight fixing method of a satellite orbit. The integrated weight fixing method of a satellite orbit includes the steps: inputting the satellite orbit data of each analysis center, and utilizing a sectioning method to perform user range error URE determination on the satellite; and calculating the weight of the analysis center based on the user range error URE and the weight of the satellite, and performing weighted integration on the satellite orbits of all the analysis centers so as to obtain an integrated orbit with high precision and high reliability. The integrated weight fixing method of a satellite orbit overcomes the defect of a weight fixing method taking the absolute deviation of the satellite orbit position and the root mean square error RMS as the basis, thus effectively solving the weight fixing problem for integration of multi-orbit type of satellite orbits, and can satisfy the approximation characteristic of orbital dynamics. The integrated weight fixing method of a satellite orbit has universality for all the satellite navigation systems, and is especially suitable for satellite orbit integration of GEO(Geostationary Orbit)/IGSO(Inclined Geostationary Orbit)/MEO(Medium Earth Orbit) multi orbit types.