In this paper, based on the well-seismic precise calibration and geological-geophysical modeling technology, the corresponding relationships among the lighologic facies, logging facies, seismic facies, attribute facies and reservoir of Changxing Formation were established. Furthermore, by means of seismic attribute extraction and inversion, the sedimentary macrio-face spatial distribution was described clearly. Meanwhile, combined with impedance inversion technique of the gamma logging, the spatial distribution of reef-beach reservoir physical properties was predicted. Through comparing with the exploration wells drilled recently, it's found that the prediction results of reservoir not only are fit for the actual exploration, but also have the high prediction accuracy. Thus, it shows that the method of prediction by geophysical and geology has theoretical directive significance in Yuanba Area and can provide practical reference for the exploration of reef-beach subtle reservoir in other areas.