With the development of the field of ocean engineering, the impact of human activities on the ocean environment is increasing. Among them, marine structures such as ships and submarines inevitably generate various noises in the ocean environment during navigation and operations. Noise control of underwater structures and prediction of the acoustic field in the ocean environment is an active research field. Understanding underwater acoustic radiation and propagation induced by structural vibration in the ocean environment involves analyzing the interaction between the ocean acoustic field and the structure. In this study, the vibration data calculated by the finite element method are imported into the singular boundary method to analyze the underwater acoustic propagation in the ocean environment. The mirror method and normal mode method are applied to construct Green's function of the underwater acoustic propagation in the ocean environment. The benchmark example is carried out to demonstrate the accuracy and efficiency of the proposed hybrid solver in comparison with analytical solutions and finite element results.