diff --git a/src/kernels/kernels/elewise/quant/quant_tiling/quant_tiling.cpp b/src/kernels/kernels/elewise/quant/quant_tiling/quant_tiling.cpp
index 7ebefcb5d31d1eba0b681df46b6fd6e9d8a075c7..5431f956c3562f4f205b0f288fc64d1ab82c4f32 100644
--- a/src/kernels/kernels/elewise/quant/quant_tiling/quant_tiling.cpp
+++ b/src/kernels/kernels/elewise/quant/quant_tiling/quant_tiling.cpp
@@ -33,6 +33,8 @@ Status QuantF16Tiling(const LaunchParam &launchParam, KernelInfo &kernelInfo)
     Status ret = PostLayerNormPtrFunc(tilingDataPtr, quantPtrCon, launchParam, kernelInfo);
     OP_TILING_CHECK_STATUS_RETURN(ret);
     int32_t scalarUsed = 256;
+    MKI_CHECK(quantPtrCon.numCol % 32 == 0, "last dim is not 32 bytes align",
+              return Status::FailStatus(ERROR_INVALID_VALUE, "last dim is not 32 bytes align")); // 32: 算子约束最后一维32字节对齐要求
     MKI_CHECK(quantPtrCon.nlFirstdimPerCoreNum <
                   (static_cast<uint32_t>(std::numeric_limits<int32_t>::max()) / 2) / quantPtrCon.numCol,
               "numCol or nlFirstdimPerCoreNum is not invalid",