In this paper,analytical formulas of M2 factor and angular extension θ(z) of partially coherent twisted vortex beam (PCTVB) propagating in oceanic turbulence are derived based on the extended Huygens Fresnel principle and the Wigner distribution function (WDF) second moment. The effects of oceanic turbulence on M2 factor and angular spread θ(z) of PCTVB are studied in detail by numerical simulation methods,and the results show that the M2 factor and θ(z) of PCTVB is greatly affected by oceanic turbulence with the large rate of dissipation of mean square temperature and large relative strength of temperature and salinity undulations as well as the small rate of dissipation of turbulent kinetic energy per unit mass of fluid and small anisotropic factor. In addition,it is found that the PCTVB has better resistance to ocean turbulence compared to the non twisted vortex beam (PCVB),and the M2 factor and angular extension θ(z) of the PCTVB are significantly reduced and the beam′s resistance to ocean turbulence is enhanced by increasing the topological charge m as well as the absolute value of the distortion factor |μ|. And increasing the beam waist width w0 and wavelength λ as well as decreasing the initial coherence lengths δηη(η=x,y) can likewise increase the beam′s resistance to ocean turbulence. The numerical results in this paper are of great significance for ocean optical communications.