The development of ferrites makes them can be widely used in the field of optics, electrics, sound, magnetism. Ni-Zn ferrite offer the possibilities of good magnetic properties and high electrical resistivity, together with large permeability at high frequency. However, the present Ni-Zn ferrite's properties are strongly influenced by the materials' composition and microstructure, which are sensitive to the preparation methodology used in their synthesis. Furthermore, it also need ferrite to answer strict environment and realize better properties with the recent trend. So, more improvement should be achieved. Here we proposed a modified way to prepare it, new polymer bonded Ni-Zn ferrite. We make effort to improve its magnetic property and formulate its tendency. We demonstrated to optimize the preparation technology including modifying the method of preparing magnetic powder and bonding with binder. Selection of materials is also important to its property. Through this work, new polymer bonded Ni-Zn ferrite presents high magnetic property and recyclable property. Further, through large amount of experiment data and basic knowledge, we can also formulate its magnetic property corresponding to its ratio.