diff --git a/paddle/fluid/operators/interpolate_op.cc b/paddle/fluid/operators/interpolate_op.cc
index 83b2086bbb8f24835b0cefb9ef11e6d21e7b4114..357832223c01f6a0c1836fd6b6e9460fe1c74ce5 100644
--- a/paddle/fluid/operators/interpolate_op.cc
+++ b/paddle/fluid/operators/interpolate_op.cc
@@ -90,9 +90,9 @@ class InterpolateOpMaker : public framework::OpProtoAndCheckerMaker {
         "if Flase, are not aligned")
         .SetDefault(true);
     AddAttr<int>("align_mode",
-                 "(int, default \'1\'), can be \'0\' for "
-                 "src_idx = scale*(dst_indx+0.5)-0.5 , can be \'1\' for "
-                 "src_idx = scale*dst_index .")
+                 "(int, default \'1\'), optional for bilinear interpolation"
+                 "can be \'0\' for src_idx = scale*(dst_indx+0.5)-0.5 , "
+                 "can be \'1\' for src_idx = scale*dst_index .")
         .SetDefault(1);
     AddComment(R"DOC(
           This operator samples input X to given output shape by using specified
diff --git a/python/paddle/fluid/layers/nn.py b/python/paddle/fluid/layers/nn.py
index 4d40f2e7c2a39567e1811f1f2e4e794865c4896a..77545d600217d258f52363913fdb11f7f2009025 100644
--- a/python/paddle/fluid/layers/nn.py
+++ b/python/paddle/fluid/layers/nn.py
@@ -6649,7 +6649,7 @@ def image_resize(input,
                                input and output tensors are aligned, preserving the values at the 
                                corner pixels.
                                Default: True
-        align_mode(int)  :  An optional input to specify src_idx calculation. can be \'0\' 
+        align_mode(int)  :  An optional for bilinear interpolation. can be \'0\' 
                             for src_idx = scale*(dst_indx+0.5)-0.5 , can be \'1\' for 
                             src_idx = scale*dst_index .