Abstract: This paper studies the influence of different hole shapes on the film cooling to determine the dependency of the film cooling on the shape of the film hole in the impinging stream under the condition of 15 km in height and 15Ma in velocity. The CFD method is used to simulate four kinds of cooling holes, namely, the cylindrical hole, the shrinkage hole, the continuous expansion hole, and the piecewise expansion hole under the working state of the stable short penetration model (SPM), where the film cooling hole inlet conditions are set to be 0.5 MPa for the inlet pressure and 22.5 g/s for the mass flow. It is shown that the heat flux on the vehicle wall with the expansion hole is the maximum among the three cases; the value is smaller for the case of the cylindrical hole, and the lowest value is found for the shrinkage hole case. So that the shape of the hole can change the flow characteristics of impinging streams, manifested as different film cooling degrees. The best effect is seen for the shrinkage hole under SPM working mode.