diff --git a/operator/ascendc/0_introduction/20_mmad_kernellaunch/MmadInvocation/README.md b/operator/ascendc/0_introduction/20_mmad_kernellaunch/MmadInvocation/README.md
index 84477c6ef2141b8c0fe13562e42a91bdf540a8dc..7bb83671c4459770e06125c7c394cb77e9894d03 100644
--- a/operator/ascendc/0_introduction/20_mmad_kernellaunch/MmadInvocation/README.md
+++ b/operator/ascendc/0_introduction/20_mmad_kernellaunch/MmadInvocation/README.md
@@ -22,6 +22,7 @@
 <tr><td align="center">b</td><td align="center">K * N</td><td align="center">float16</td><td align="center">ND</td></tr>
 </tr>
 </tr>
+<tr></tr>
 <tr><td rowspan="1" align="center">算子输出</td><td align="center">c</td><td align="center">M * N</td><td align="center">float</td><td align="center">ND</td></tr>
 </tr>
 <tr><td rowspan="1" align="center">核函数名</td><td colspan="4" align="center">mmad_custom</td></tr>