diff --git a/mindspore/nn/optim/momentum.py b/mindspore/nn/optim/momentum.py
index 2cea1ce460..b1fe65b6a8 100755
--- a/mindspore/nn/optim/momentum.py
+++ b/mindspore/nn/optim/momentum.py
@@ -52,7 +52,7 @@ class Momentum(Optimizer):
     .. math::
             p_{t} =  p_{t-1} - (grad \ast lr + v_{t} \ast u \ast lr)
 
-    If use_nesterov is Flase:
+    If use_nesterov is False:
 
     .. math::
             p_{t} = p_{t-1} - lr \ast v_{t}
diff --git a/mindspore/nn/optim/sgd.py b/mindspore/nn/optim/sgd.py
index 877156204a..78d241a812 100755
--- a/mindspore/nn/optim/sgd.py
+++ b/mindspore/nn/optim/sgd.py
@@ -47,7 +47,7 @@ class SGD(Optimizer):
     .. math::
             p_{t+1} = p_{t} - lr \ast (gradient + u \ast v_{t+1})
 
-    If nesterov is Flase:
+    If nesterov is False:
 
     .. math::
             p_{t+1} = p_{t} - lr \ast v_{t+1}
diff --git a/model_zoo/official/cv/resnet/src/momentum.py b/model_zoo/official/cv/resnet/src/momentum.py
index 7dd96e5d0c..7c2e3c5ec8 100644
--- a/model_zoo/official/cv/resnet/src/momentum.py
+++ b/model_zoo/official/cv/resnet/src/momentum.py
@@ -44,7 +44,7 @@ class Momentum(Optimizer):
     .. math::
             p_{t} =  p_{t-1} - (grad \ast lr + v_{t} \ast u \ast lr)
 
-    If use_nesterov is Flase:
+    If use_nesterov is False:
 
     .. math::
             p_{t} = p_{t-1} - lr \ast v_{t}