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In order to harvest the vibration energy of suspension and make it with failsafe characteristics, a hybrid suspension structure with spring, damper and linear motor in parallel was proposed. According to the dead zone in the harvesting process of linear motor, a DC/DC boost circuit was designed so that the electromagnetic damping force can still be provided by the linear motor in the process of dead zone. Based on the energy dissipation of traditional passive suspension, an explicit expression of energy efficiency in the same driving cycle was obtained. And the energy efficiency of suspension was used as evaluation index of suspension. Meanwhile, to take into account of the performance of system dynamics, the influence of damping value on energy regeneration performance and vibration isolation performance was studied, and the optimal shock absorber damping value was determined by compromise design. A hybrid energy regenerative suspension dynamic model was established, the vibration isolation performance and energy regeneration performance of suspension based on optimal damping of vibration damper were compared and analyzed. The simulation results showed that the hybrid energy regenerative suspension can effectively coordinate the energy efficiency and vibration isolation of the vehicle. Finally, based on the simulation, the experimental study on hybrid energy regenerative suspension was carried out on the INSTRON 8800 numerical control hydraulic servo exciting test bench. The test results were in agreement with the simulation results, which verified the correctness of simulation results.