For the comparison of sound level, experimental investigation on the aeroacoustic characteristics of three sets of model rotors under different tips with anhedral angles in hover is conducted in the anechoic chamber.The noise information on rotors at distinct collective pitch angles and observation points is collected. In aspect of numerical simulation, RANS control equations are solved to get the detailed flow-field aerodynamic information of rotor, and the aeroacoustic information is calculated based on FW-H equation. In the same conditions, test results and simulation results are in good agreement, which validates the feasibility of the presented numerical method. Finally, based upon the test results, comparisons of aeroacoustic characteristics among the model rotors with different blade tips are made.