In order to verify the reliability of Computational Fluid Dynamics (CFD) methods for predicting the hydrodynamic performance of propellers, this study conducts a simulation analysis of multiple performance parameters of propellers at different advanced coefficients using CFD. Taking KP458 marine propellers as the research object, using the Motion Reference Frame Method (MRF) to verify the hydrodynamic performance of the propeller, the inlet boundary is set as the velocity inlet, and the outlet boundary condition is set as the free outlet. At the same time, the wall is set to a non slip fixed wall condition, and a standard wall function is used to approximate the area near the wall. The three-dimensional computational domain of the flow field is finely meshed using the Poly-Hexcore method. Simultaneously, different grid quantities of the Poly-Hexcore grid system are employed at the same advance coefficient. This is done to perform a grid independence test by numerically comparing the simulation results with experimental data, thus validating the reliability and accuracy of the CFD method. This method provides detailed flow field information, performance parameters, and relevant flow characteristics for propellers, making it of significant reference value for propeller design, optimization and practical maritime engineering.