The paperanalyzed the recycle condition and developing trend of used refractories in China and other countries, including research achievements of recycles of used refractories such as MgO-C bricks, Al2O3-MgO-C bricks, Al2O3-SiC-C castable and MgO-Cr2O3 bricks. Recycled refractories exhibit the same or even better properties compared with the original. In addition, prospects for recycle of used refractories are also discussed.