A new type of high efficiency vibration energy harvester is designed by using the reverse effect of magnetic shape memory alloy (MSMA) in this paper. The structure model of the vibration energy harvester is established and analyzed, and the structure of each part of the collector is analyzed and calculated. And through the ANSYS simulation software, the finite element analysis of the designed collector structure is carried out, and the correctness of each part of the structural parameters and material selection is verified. On the basis of simulation, by building the experimental platform, the prototype test of the MSMA vibration energy harvester is carried out. The output curve of the induction voltage under different input conditions is obtained by the stress change of the input frequency and amplitude. The experimental results verify the feasibility and effectiveness of using MSMA material to convert mechanical vibration energy into electrical energy.