The development of fractures results in azimuthal anisotropy of reservoirs，while the pre-stack seismic data of different orientations show differences in amplitude and other properties. Therefore，pre-stack seismic synchronous inversion method based on azimuthal seismic data can be used to get the relevant parameters of reservoir fractures and then predict reservoir fractures. For this reason，starting from the basic theory of azimuthal anisotropic medium，rock physical parameters describing fractured medium were introduced，and the relation between anisotropic parameters and fracture parameters was given. Aiming at the disadvantage that the stepwise inversion method may generate accumulated error，combined with Bayesian theory，the pre-stack seismic synchronous inversion method for fractured media was proposed. The results of both model test and real data test show that the new method has good reliability and stability.