Abstract: Taking a certain type of traction counter-rotating propeller fan as the research object, the geometric model of isolated propeller fan is established, and CFD simulation calculation is carried out. The rotating domain and far-field static domain are set respectively, and the whole flow field domain is spliced after grid division. RNG k-e turbulence model is used, and the sliding grid is set to calculate the dynamic characteristic parameters of the propeller fan under three typical working conditions, such as cruising, climbing and rolling. Compared with the wind tunnel test data, the maximum relative error is 6.63%. The results show that the force coefficient and power coefficient of propeller fan decrease with the increase of flight Mach number, and the trend of performance decline caused by the increase of Mach number becomes more obvious under the condition of high pitch ratio. The blade angle of propeller fan is the most important performance adjustment parameter. Under the same working condition, the larger the blade angle is, the greater the tension coefficient is, and the trend of increase is more obvious at high pitch ratio.