To improve the skid resistance of asphalt pavements in hot and humid areas, 88# calcined bauxite was used to design a high skid-resistant SMA-7 asphalt mixture for road surfaces. The optimal dosage of calcined bauxite was determined using the grey target decision-making theory, and the road performance of SMA-7 was evaluated. Based on optimizing the gradation range of SMA-7 mineral aggregates, the appropriate amount of 88# calcined bauxite was determined. The rutting test, low-temperature beam bending test, and freeze-thaw splitting test were conducted to evaluate the high-temperature stability, low-temperature crack resistance, and water stability of SMA-7. The specimens were abraded multiple times using a three-wheel polishing device, and the dynamic friction coefficient was measured with a dynamic friction tester under different simulated speed conditions to investigate the evolution of the skid resistance of the SMA-7 asphalt mixture. By comprehensively considering various performance indicators of the asphalt mixtures, the optimal dosage of 88# calcined bauxite in the asphalt mixtures was calculated using the grey target decision-making theory. The results show that partially replacing limestone with 88# calcined bauxite can significantly improve the overall road performance of SMA-7 asphalt mixtures, with the most notable enhancements in skid resistance durability and high-temperature stability. According to calculations based on the grey target decision theory, the road performance of SMA-7 is optimal when 70% to 80% calcined bauxite is incorporated into the asphalt mixture.