Abstract: The Shored Mechanically Stabilized Earth (SMSE) Walls have broad application prospects in the field of road construction and existing road widening in mountainous areas. In order to understand the influence of the reinforcement connection form on the dynamic response characteristics of the SMSE wall, the shaking table tests of the non-connection, friction connection and mechanical connection of the reinforcement were carried out, and the change laws of acceleration response, panel displacement, dynamic characteristics, reinforcement strain, and potential fracture surface of the three groups of tests were explored. The results show that the acceleration amplification coefficient of the three groups of experiments is nonlinearly distributed along the wall height and reaches the peak value at the top of the retaining wall. The peak values of permanent displacement of the wall were 0.138%H, 0.034%H and 0.015%H, respectively, the mechanical connection was reduced by 89.13% compared with the non-connection, and the rewinding of the reinforcement was reduced by 75.36% compared with the non-connection. After the test, the natural frequency of the retaining wall decreased, by 1.22%, 0.81% and 0.52%, respectively. The strain increment of the reinforcement increases with the increase of input acceleration, and changes nonlinearly along the wall height. The measured potential fracture surface form is different from the existing standard fracture surface form, and the mechanical connection potential fracture surface is a double-folded line that passes through the wall toe and stabilizes the steep slope surface along the rear, and attention should be paid to the reinforcement of the connection behind the wall during the construction design. The comprehensive test data show that the mechanical connection of the reinforcement shows better seismic performance in terms of acceleration amplification factor, permanent displacement of the wall and dynamic characteristics than the rewinding type of reinforcement. The research results can provide a reference for the design and construction of finite space reinforced reinforced soil retaining walls, and promote the application of this new structure in the extreme earthquake region.