An improved fitting algorithm of Broadcast Ephemeris for GEO satellite with near-zero-inclination is introduced in the paper. The main idea of the algorithm requires the appropriate rotation of the coordinate reference plane to the position observations based on the general algorithm. Within the algorithm, in particularly, the corresponding coordinate transformation to the fitting initial value is proposed. According to the method, fitting problem in the correlation of orbital parameters can be resolved, and the convergence of iterations is quickly achieved. Meanwhile, the computation for the user receiver is simplified. The simulation results show that the Root-Mean-Square error reaches centimeter level and the fitting accuracy can be guaranteed, indicating the effectiveness of the method.