<p>The present work aims to study the potential of reducing the vibration of the beam system by utilizing the nonlinear connector from theoretical and experimental perspectives. Firstly, the vibration analysis model of a targeted beam with an extension beam and a boundary nonlinear connector is theoretically established, while the experiment system related to the targeted beam with an extension beam and a boundary nonlinear connector is designed and fabricated. Then, the potential application of the boundary nonlinear connector in the vibration reduction of the targeted beams is explored through theory and experiment. Through this study, it can be found that the boundary nonlinear connector made in this work presents attractive nonlinear characteristics, where the nonlinear stiffness of the boundary nonlinear connector is the key parameter to control the vibration response characteristics of the targeted beam. Furthermore, the linear vibration transmission path of the boundary nonlinear connector shares the vibration energy transferred from the nonlinear vibration transmission path, causing complicated responses of the targeted beam without linear stiffness to be more likely motivated in the same parameter variation range of nonlinear stiffness. Overall, the experimental results related to the targeted beam with a boundary nonlinear connector and an extension beam are consistent with the theoretical analysis results made in this work, which lays a foundation for applying the boundary nonlinear connector in reducing the vibration of coupling beam structures in engineering.</p>