diff --git a/mindspore/nn/__init__.py b/mindspore/nn/__init__.py
index cee7b08915f..19f70bf348d 100644
--- a/mindspore/nn/__init__.py
+++ b/mindspore/nn/__init__.py
@@ -19,6 +19,7 @@ Pre-defined building blocks or computing units to construct Neural Networks.
 """
 from . import layer, loss, optim, metrics, wrap, probability, sparse
 from .learning_rate_schedule import *
+from .dynamic_lr import *
 from .cell import Cell, GraphKernel
 from .layer import *
 from .loss import *
@@ -36,5 +37,6 @@ __all__.extend(metrics.__all__)
 __all__.extend(wrap.__all__)
 __all__.extend(sparse.__all__)
 __all__.extend(learning_rate_schedule.__all__)
+__all__.extend(dynamic_lr.__all__)
 
 __all__.sort()
diff --git a/tests/ut/python/nn/optim/test_adam.py b/tests/ut/python/nn/optim/test_adam.py
index 687a1363aa3..774cede36dc 100644
--- a/tests/ut/python/nn/optim/test_adam.py
+++ b/tests/ut/python/nn/optim/test_adam.py
@@ -22,8 +22,6 @@ from mindspore.common.api import _executor
 from mindspore.nn import TrainOneStepCell, WithLossCell
 from mindspore.nn.optim import Adam, AdamWeightDecay
 from mindspore.ops import operations as P
-import mindspore.nn.learning_rate_schedule as lr_schedules
-from mindspore.nn.dynamic_lr import polynomial_decay_lr
 
 context.set_context(enable_sparse=True)
 
@@ -137,7 +135,7 @@ def test_adam_group1():
     net_with_loss = WithLossCell(net, loss)
     all_params = net.trainable_params()
 
-    poly_decay_lr = polynomial_decay_lr(0.01, 0.0001, total_step=10, step_per_epoch=1, decay_epoch=3, power=1.0)
+    poly_decay_lr = nn.polynomial_decay_lr(0.01, 0.0001, total_step=10, step_per_epoch=1, decay_epoch=3, power=1.0)
 
     group_params = [{'params': [all_params[0]], 'lr': poly_decay_lr, 'weight_decay': 0.9},
                     {'params': [all_params[1]]}]
@@ -157,7 +155,7 @@ def test_adam_group2():
     net_with_loss = WithLossCell(net, loss)
     all_params = net.trainable_params()
 
-    schedule_lr = lr_schedules.PolynomialDecayLR(0.01, 0.0001, 3, power=1.0)
+    schedule_lr = nn.PolynomialDecayLR(0.01, 0.0001, 3, power=1.0)
     group_params = [{'params': [all_params[0]], 'lr': 0.02, 'weight_decay': 0.9},
                     {'params': [all_params[1]]}]
     optimizer = nn.Adam(group_params, learning_rate=schedule_lr)
@@ -175,7 +173,7 @@ def test_adamweightdecay_group():
     net_with_loss = WithLossCell(net, loss)
     all_params = net.trainable_params()
 
-    schedule_lr = lr_schedules.PolynomialDecayLR(0.01, 0.0001, 3, power=1.0)
+    schedule_lr = nn.PolynomialDecayLR(0.01, 0.0001, 3, power=1.0)
     group_params = [{'params': [all_params[0]], 'lr': 0.02, 'weight_decay': 0.9},
                     {'params': [all_params[1]]}]
     optimizer = nn.AdamWeightDecay(group_params, learning_rate=schedule_lr)
@@ -193,7 +191,7 @@ def test_adamoffload_group():
     net_with_loss = WithLossCell(net, loss)
     all_params = net.trainable_params()
 
-    schedule_lr = lr_schedules.PolynomialDecayLR(0.01, 0.0001, 3, power=1.0)
+    schedule_lr = nn.PolynomialDecayLR(0.01, 0.0001, 3, power=1.0)
     group_params = [{'params': [all_params[0]], 'lr': 0.02, 'weight_decay': 0.9},
                     {'params': [all_params[1]]}]
     optimizer = nn.AdamOffload(group_params, learning_rate=schedule_lr)