Based on the method of combining the extended Huygens-Fresnel principle with the Wigner distribution function (WDF),the analytical expression of M² factor and angular width of partially coherent twisted vector beam (PCTVB) in ocean turbulence is derived.Numerical simulation shows that the anti-turbulence ability of beam can be improved to some extent by adjusting beam waist width,twisted factor,initial coherence length,wavelength.Decreasing the initial coherence length, increasing wavelength and waist width can make the beam have a smaller M² factor,while increasing the absolute value of the t wisted factor, the M² factor of the beam is smaller,and the anti-tur bulence interference of the beam is stronger.As the temperature variance dissipation rate and the ratio of temperature and salinity decrease, the dissipation rate of kinetic energy and anisotropy factor increase, the effect of ocean turbulence on beam becomes smaller and the beam will have better propagation quality.