diff --git a/paddlespeech/s2t/models/ds2/__init__.py b/paddlespeech/s2t/models/ds2/__init__.py
index b32220673..0a5c50d86 100644
--- a/paddlespeech/s2t/models/ds2/__init__.py
+++ b/paddlespeech/s2t/models/ds2/__init__.py
@@ -14,13 +14,15 @@
 from .deepspeech2 import DeepSpeech2InferModel
 from .deepspeech2 import DeepSpeech2Model
 from paddlespeech.s2t.utils import dynamic_pip_install
+import sys
 
 try:
     import paddlespeech_ctcdecoders
 except ImportError:
     try:
         package_name = 'paddlespeech_ctcdecoders'
-        dynamic_pip_install.install(package_name)
+        if sys.platform != "win32":
+            dynamic_pip_install.install(package_name)
     except Exception:
         raise RuntimeError(
             "Can not install package paddlespeech_ctcdecoders on your system. \
diff --git a/paddlespeech/s2t/models/ds2_online/__init__.py b/paddlespeech/s2t/models/ds2_online/__init__.py
index c5fdab1bc..de772b645 100644
--- a/paddlespeech/s2t/models/ds2_online/__init__.py
+++ b/paddlespeech/s2t/models/ds2_online/__init__.py
@@ -14,13 +14,15 @@
 from .deepspeech2 import DeepSpeech2InferModelOnline
 from .deepspeech2 import DeepSpeech2ModelOnline
 from paddlespeech.s2t.utils import dynamic_pip_install
+import sys
 
 try:
     import paddlespeech_ctcdecoders
 except ImportError:
     try:
         package_name = 'paddlespeech_ctcdecoders'
-        dynamic_pip_install.install(package_name)
+        if sys.platform != "win32":
+            dynamic_pip_install.install(package_name)
     except Exception:
         raise RuntimeError(
             "Can not install package paddlespeech_ctcdecoders on your system. \
diff --git a/paddlespeech/s2t/modules/ctc.py b/paddlespeech/s2t/modules/ctc.py
index 33ad472de..ca576eef1 100644
--- a/paddlespeech/s2t/modules/ctc.py
+++ b/paddlespeech/s2t/modules/ctc.py
@@ -22,6 +22,7 @@ from paddlespeech.s2t.modules.align import Linear
 from paddlespeech.s2t.modules.loss import CTCLoss
 from paddlespeech.s2t.utils import ctc_utils
 from paddlespeech.s2t.utils.log import Log
+import sys
 
 logger = Log(__name__).getlog()
 
@@ -34,7 +35,8 @@ except ImportError:
     try:
         from paddlespeech.s2t.utils import dynamic_pip_install
         package_name = 'paddlespeech_ctcdecoders'
-        dynamic_pip_install.install(package_name)
+        if sys.platform != "win32":
+            dynamic_pip_install.install(package_name)
         from paddlespeech.s2t.decoders.ctcdecoder import ctc_beam_search_decoding_batch  # noqa: F401
         from paddlespeech.s2t.decoders.ctcdecoder import ctc_greedy_decoding  # noqa: F401
         from paddlespeech.s2t.decoders.ctcdecoder import Scorer  # noqa: F401
diff --git a/paddlespeech/s2t/transform/perturb.py b/paddlespeech/s2t/transform/perturb.py
index 9e41b824b..b18caefb8 100644
--- a/paddlespeech/s2t/transform/perturb.py
+++ b/paddlespeech/s2t/transform/perturb.py
@@ -154,7 +154,8 @@ class SpeedPerturbationSox():
                 package = "sox"
                 dynamic_pip_install.install(package)
                 package = "soxbindings"
-                dynamic_pip_install.install(package)
+                if sys.platform != "win32":
+                    dynamic_pip_install.install(package)
                 import soxbindings as sox
             except Exception:
                 raise RuntimeError(