During underwater detection operations, the water body is disturbed by the external environment, which changes the underwater refractive index, enhances the scattering effect of the water body on light, and causes the underwater optical target to be blurred and the image quality is reduced. In view of this, the ghost imaging method is used to overcome underwater disturbances, and the second-order coherence of the reference light field and the measurement light field are used to measure separately. At a certain moment, the light field distribution of the reference beam on the collection plane and the measurement beam on the collection plane. According to the total light intensity, the ghost image is reconstructed. During the experiment, ultrasonic waves are used to disturb the water body, the imaging results of ghost imaging methods and classic imaging methods are compared, and the peak signal-to-noise ratio of the two imaging results are compared to study the anti-disturbance ability of the ghost imaging system under water. The experimental results show that the image quality of ghost imaging method is higher than that of classic imaging method in the environment of underwater disturbance.