Aiming at the problem that the underwater vehicle is easy to be detected by the enemy’s high-altitude remote sensing detector when it performs specific tasks, the detection probability of its wave-making wake is analyzed. On the basis of analyzing the formation mechanism of wave-making wake, according to the potential flow theory, the point source problem of fluid is analyzed by using Green’s function, and the wave-making wake model of underwater vehicle is established. According to the sea wave model and the energy bisection method, the signal to noise ratio was extracted by simulating the random sea surface, and the exposure probability model of the underwater vehicle found by the high-altitude remote sensing detector was constructed, and the discovery probability under different sea conditions, depths and speeds was simulated and analyzed. The simulation results show that the analysis has guiding significance for combat commanders who use underwater vehicles.