Based on the extended Huygens-Fresnel integral and the theory of ghost imaging, the reflective lensless ghost imaging through Kolmogorov oceanic turbulence is investigated. The theoretical expressions for the impulse response function and the visibility of reflective ghost imaging in oceanic turbulence are obtained. The results show that the quality of reflective ghost imaging could be maintained at a relatively small incident reflective angle, whereas the quality is degraded dramatically at a relatively long distance with a relatively big incident reflective angle. The visibility of reflective ghost imaging is analyzed under various turbulence conditions and over different propagation distances by numerical calculation. It is a guidance for the realization of adaptive underwater optical ghost imaging over different length scales under the effect of oceanic turbulence.