To fulfill broadband lowfrequency vibration isolation,a new twodimensional negative Poisson′s ratio structure with elastic joints was proposed.Firstly,the finite element model of the unit cell was established,and the angle of the elastic joint was taken as a design variable.The effect of the angle on the first three natural frequencies was analysed,and the optimal angle and element configuration were obtained.Secondly,the dynamic analysis of the unit cell was carried out to reveal the relationship between the isolation frequency band and the angle.Finally,the dynamic analysis of the vibration isolation structure was carried out,and the dynamic responses under different excitation directions were obtained.The results showed that this vibration isolation structure achieves a wide and deep band gap at low frequencies,and realizes lowfrequency and widefrequency vibration isolation,which provides a new idea for the structure and material design for vibration isolation.