The hydrodynamic excitation force of the propeller causes vibration in the ship's propulsion shaft system, which is transmitted to the hull through the bearing seat, causing sound radiation and reducing its acoustic stealth ability. Semi active control technology has broadband vibration control performance and is very suitable for vibration control of propulsion shaft hull coupling system. This article proposed a conceptual model of a multimodal semi-active dynamic vibration absorber array based on magnetorheological elastomer materials with ultra-wideband vibration control characteristics, to control the longitudinal and transverse vibration of propulsion shaft hull coupling system. An anisotropic magnetorheological elastomer with excellent magnetorheological properties was prepared, with a shear storage modulus between 0.244 ~ 1.56 MPa in the magnetic field range of 0 ~ 1000 mT. In addition, a vibration absorber array based on magnetorheological elastomers with a longitudinal natural frequency shift range of 671.8 Hz in the range of 20.1 ~ 728 Hz and a transverse natural frequency shift range of 7.8 ~ 189 Hz was also constructed. Finally, a simulation model of the propulsion shaft hull coupling system was established, and the proposed vibration absorber array was installed to verify its vibration reduction performance. The results showed that the transverse vibration VAL of the shaft ship coupling system decreased by 6 dB in the 7.9 ~ 199.1 Hz, and the longitudinal vibration VAL decreased by 5 dB in the 20.1 ~ 728 Hz.