Abstract: High performance Nd-Fe-B magnet produced by the strip casting (SC) was investigated. Compared with traditional ingot casting technology, the SC processing refines and homogenizes the columnar structures and suppresses the formation of α-Fe dendrites so that it greatly improves the microstructure in the as-casted alloy. It was found that the Nd-rich phase distributes uniformly along the grain boundaries of fine columnar matrix phase in the speed cooled strip. The columnar grains are about 5-25 μm in mean width. Using the cast strips for powder production, the fine powder with a good particle size distribution can be obtained easily. Due to the optimum distribution of Nd-rich phase, the magnets made from the cast strip shows high density even at a lower sintering temperature. The magnets made by SC technology showed a higher Br,Hci and (BH)max than that made by traditional ingot technology.