The　study　reported　was　intended　to　improve　the　leaching　rate　of　boron-bearing　tailings,　using　a　method　of　sodium　roasting　that　uses　boron-bearing　tailings　as　the　raw　material　and　Na2CO3　as　the　sodium　agent.　The　effects　of　the　roasting　temperature　and　Na2CO3　amount　on　the　leaching　rate　of　boron-bearing　tailings　are　mainly　evaluated.　The　morphology　and　composition　of　the　samples　after　sodium　roasting　are　analysed　by　scanning　electron　microscopy　and　X-ray　diffraction.　The　results　show　that　sodium　roasting　can　significantly　improve　the　leaching　rate　of　boron-bearing　tailings.　Under　the　optimal　conditions　where　roasting　temperature　is　950　degrees　C,　Na2CO3　amount　is　five　times　the　theoretical　amount　and　roasting　time　is　2　h,　the　leaching　rate　of　boron-bearing　tailings　is　up　to　86.78%.　Based　on　the　analysis　of　the　characterization　results　and　the　mechanism　analysis　of　the　sodium　roasting　process,　the　main　reason　for　the　increase　of　leaching　rate　is　the　reaction　between　Na2O　produced　by　the　decomposition　of　Na2CO3　and　the　boron　in　boron-bearing　tailings　resulting　in　soluble　sodium　borate.　The　results　provide　a　scientific　basis　for　the　efficient　comprehensive　use　of　boron-bearing　tailings.