diff --git a/paddlers/custom_models/__init__.py b/paddlers/custom_models/__init__.py
new file mode 100644
index 0000000..ea0abdf
--- /dev/null
+++ b/paddlers/custom_models/__init__.py
@@ -0,0 +1,15 @@
+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from . import cls, det, seg, gan, cd
\ No newline at end of file
diff --git a/paddlers/models/cd/__init__.py b/paddlers/custom_models/cd/__init__.py
similarity index 100%
rename from paddlers/models/cd/__init__.py
rename to paddlers/custom_models/cd/__init__.py
diff --git a/paddlers/models/cd/models/__init__.py b/paddlers/custom_models/cd/models/__init__.py
similarity index 100%
rename from paddlers/models/cd/models/__init__.py
rename to paddlers/custom_models/cd/models/__init__.py
diff --git a/paddlers/models/cd/models/backbones/__init__.py b/paddlers/custom_models/cd/models/backbones/__init__.py
similarity index 100%
rename from paddlers/models/cd/models/backbones/__init__.py
rename to paddlers/custom_models/cd/models/backbones/__init__.py
diff --git a/paddlers/models/cd/models/backbones/resnet.py b/paddlers/custom_models/cd/models/backbones/resnet.py
similarity index 100%
rename from paddlers/models/cd/models/backbones/resnet.py
rename to paddlers/custom_models/cd/models/backbones/resnet.py
diff --git a/paddlers/models/cd/models/bit.py b/paddlers/custom_models/cd/models/bit.py
similarity index 100%
rename from paddlers/models/cd/models/bit.py
rename to paddlers/custom_models/cd/models/bit.py
diff --git a/paddlers/models/cd/models/cdnet.py b/paddlers/custom_models/cd/models/cdnet.py
similarity index 100%
rename from paddlers/models/cd/models/cdnet.py
rename to paddlers/custom_models/cd/models/cdnet.py
diff --git a/paddlers/models/cd/models/dsamnet.py b/paddlers/custom_models/cd/models/dsamnet.py
similarity index 100%
rename from paddlers/models/cd/models/dsamnet.py
rename to paddlers/custom_models/cd/models/dsamnet.py
diff --git a/paddlers/models/cd/models/dsifn.py b/paddlers/custom_models/cd/models/dsifn.py
similarity index 100%
rename from paddlers/models/cd/models/dsifn.py
rename to paddlers/custom_models/cd/models/dsifn.py
diff --git a/paddlers/models/cd/models/layers/__init__.py b/paddlers/custom_models/cd/models/layers/__init__.py
similarity index 100%
rename from paddlers/models/cd/models/layers/__init__.py
rename to paddlers/custom_models/cd/models/layers/__init__.py
diff --git a/paddlers/models/cd/models/layers/attention.py b/paddlers/custom_models/cd/models/layers/attention.py
similarity index 100%
rename from paddlers/models/cd/models/layers/attention.py
rename to paddlers/custom_models/cd/models/layers/attention.py
diff --git a/paddlers/models/cd/models/layers/blocks.py b/paddlers/custom_models/cd/models/layers/blocks.py
similarity index 100%
rename from paddlers/models/cd/models/layers/blocks.py
rename to paddlers/custom_models/cd/models/layers/blocks.py
diff --git a/paddlers/models/cd/models/param_init.py b/paddlers/custom_models/cd/models/param_init.py
similarity index 94%
rename from paddlers/models/cd/models/param_init.py
rename to paddlers/custom_models/cd/models/param_init.py
index 5e578f0..59d0071 100644
--- a/paddlers/models/cd/models/param_init.py
+++ b/paddlers/custom_models/cd/models/param_init.py
@@ -67,7 +67,7 @@ class KaimingInitMixin:
 
     Examples:
 
-        from paddlers.models.cd.models.param_init import KaimingInitMixin
+        from paddlers.custom_models.cd.models.param_init import KaimingInitMixin
 
         class CustomNet(nn.Layer, KaimingInitMixin):
             def __init__(self, num_channels, num_classes):
diff --git a/paddlers/models/cd/models/snunet.py b/paddlers/custom_models/cd/models/snunet.py
similarity index 100%
rename from paddlers/models/cd/models/snunet.py
rename to paddlers/custom_models/cd/models/snunet.py
diff --git a/paddlers/models/cd/models/stanet.py b/paddlers/custom_models/cd/models/stanet.py
similarity index 100%
rename from paddlers/models/cd/models/stanet.py
rename to paddlers/custom_models/cd/models/stanet.py
diff --git a/paddlers/models/cd/models/unet_ef.py b/paddlers/custom_models/cd/models/unet_ef.py
similarity index 100%
rename from paddlers/models/cd/models/unet_ef.py
rename to paddlers/custom_models/cd/models/unet_ef.py
diff --git a/paddlers/models/cd/models/unet_siamconc.py b/paddlers/custom_models/cd/models/unet_siamconc.py
similarity index 100%
rename from paddlers/models/cd/models/unet_siamconc.py
rename to paddlers/custom_models/cd/models/unet_siamconc.py
diff --git a/paddlers/models/cd/models/unet_siamdiff.py b/paddlers/custom_models/cd/models/unet_siamdiff.py
similarity index 100%
rename from paddlers/models/cd/models/unet_siamdiff.py
rename to paddlers/custom_models/cd/models/unet_siamdiff.py
diff --git a/paddlers/models/cls/__init__.py b/paddlers/custom_models/cls/__init__.py
similarity index 100%
rename from paddlers/models/cls/__init__.py
rename to paddlers/custom_models/cls/__init__.py
diff --git a/paddlers/models/det/__init__.py b/paddlers/custom_models/det/__init__.py
similarity index 100%
rename from paddlers/models/det/__init__.py
rename to paddlers/custom_models/det/__init__.py
diff --git a/paddlers/models/gan/__init__.py b/paddlers/custom_models/gan/__init__.py
similarity index 100%
rename from paddlers/models/gan/__init__.py
rename to paddlers/custom_models/gan/__init__.py
diff --git a/paddlers/models/seg/__init__.py b/paddlers/custom_models/seg/__init__.py
similarity index 100%
rename from paddlers/models/seg/__init__.py
rename to paddlers/custom_models/seg/__init__.py
diff --git a/paddlers/models/seg/models/__init__.py b/paddlers/custom_models/seg/models/__init__.py
similarity index 100%
rename from paddlers/models/seg/models/__init__.py
rename to paddlers/custom_models/seg/models/__init__.py
diff --git a/paddlers/models/seg/models/farseg/__init__.py b/paddlers/custom_models/seg/models/farseg/__init__.py
similarity index 100%
rename from paddlers/models/seg/models/farseg/__init__.py
rename to paddlers/custom_models/seg/models/farseg/__init__.py
diff --git a/paddlers/models/seg/models/farseg/farseg.py b/paddlers/custom_models/seg/models/farseg/farseg.py
similarity index 100%
rename from paddlers/models/seg/models/farseg/farseg.py
rename to paddlers/custom_models/seg/models/farseg/farseg.py
diff --git a/paddlers/models/seg/models/farseg/fpn.py b/paddlers/custom_models/seg/models/farseg/fpn.py
similarity index 100%
rename from paddlers/models/seg/models/farseg/fpn.py
rename to paddlers/custom_models/seg/models/farseg/fpn.py
diff --git a/paddlers/models/seg/models/utils/__init__.py b/paddlers/custom_models/seg/models/utils/__init__.py
similarity index 100%
rename from paddlers/models/seg/models/utils/__init__.py
rename to paddlers/custom_models/seg/models/utils/__init__.py
diff --git a/paddlers/models/seg/models/utils/layers_lib.py b/paddlers/custom_models/seg/models/utils/layers_lib.py
similarity index 100%
rename from paddlers/models/seg/models/utils/layers_lib.py
rename to paddlers/custom_models/seg/models/utils/layers_lib.py
diff --git a/paddlers/models/seg/models/utils/param_init.py b/paddlers/custom_models/seg/models/utils/param_init.py
similarity index 100%
rename from paddlers/models/seg/models/utils/param_init.py
rename to paddlers/custom_models/seg/models/utils/param_init.py
diff --git a/paddlers/models/seg/models/utils/torch_nn.py b/paddlers/custom_models/seg/models/utils/torch_nn.py
similarity index 100%
rename from paddlers/models/seg/models/utils/torch_nn.py
rename to paddlers/custom_models/seg/models/utils/torch_nn.py
diff --git a/paddlers/models/__init__.py b/paddlers/models/__init__.py
index 8295670..9ddd097 100644
--- a/paddlers/models/__init__.py
+++ b/paddlers/models/__init__.py
@@ -12,5 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from . import ppcls, ppdet, ppseg, ppgan
-from . import cls, det, seg, gan, cd
\ No newline at end of file
+from . import ppcls, ppdet, ppseg, ppgan
\ No newline at end of file
diff --git a/paddlers/tasks/changedetector.py b/paddlers/tasks/changedetector.py
index d01390c..f4ccdc7 100644
--- a/paddlers/tasks/changedetector.py
+++ b/paddlers/tasks/changedetector.py
@@ -29,7 +29,7 @@ from .base import BaseModel
 from .utils import seg_metrics as metrics
 from paddlers.utils.checkpoint import seg_pretrain_weights_dict
 from paddlers.transforms import ImgDecoder, Resize
-import paddlers.models.cd as cd
+import paddlers.custom_models.cd as cd
 
 __all__ = ["CDNet", "UNetEarlyFusion", "UNetSiamConc", "UNetSiamDiff", "STANet", "BIT", "SNUNet", "DSIFN", "DSAMNet"]
 
diff --git a/paddlers/tasks/segmenter.py b/paddlers/tasks/segmenter.py
index 9f273f6..2c99446 100644
--- a/paddlers/tasks/segmenter.py
+++ b/paddlers/tasks/segmenter.py
@@ -21,7 +21,7 @@ import paddle
 import paddle.nn.functional as F
 from paddle.static import InputSpec
 import paddlers.models.ppseg as paddleseg
-import paddlers.models.seg as seg
+import paddlers.custom_models.seg as seg
 import paddlers
 from paddlers.transforms import arrange_transforms
 from paddlers.utils import get_single_card_bs, DisablePrint