diff --git a/doc/api_guide.md b/doc/api_guide.md
index c7ea418c70560c860a6241e27156dd3ea3b1acf2..35913866637f062b034dd959d1333bad53f578e0 100644
--- a/doc/api_guide.md
+++ b/doc/api_guide.md
@@ -5,7 +5,7 @@
 
 ### [通道剪裁](../paddleslim/prune/prune_api.md)
 
-### [量化](../paddleslim/prune/prune_api.md)
+### [量化](../paddleslim/quant/quantization_api_doc.md)
 
 #### [量化训练]()