diff --git a/maix/__init__.py b/maix/__init__.py
index bce94e77..a6d1114e 100644
--- a/maix/__init__.py
+++ b/maix/__init__.py
@@ -4,8 +4,11 @@
 from ._maix.peripheral.key import add_default_listener
 from .__signal_handle__ import register_signal_handle
 from ._maix.util import register_atexit
+from . import __maix_time__
 from . import _maix
 
+del __maix_time__ # update time module then delete
+
 register_signal_handle()
 del register_signal_handle
 
diff --git a/maix/__maix_time__.py b/maix/__maix_time__.py
new file mode 100644
index 00000000..5dfdea5c
--- /dev/null
+++ b/maix/__maix_time__.py
@@ -0,0 +1,12 @@
+from . import _maix
+import time
+
+def sleep_ms(ms : int):
+    time.sleep(ms * 0.001)
+
+def sleep_us(us: int):
+    time.sleep(us * 0.000001)
+
+_maix.time.sleep = time.sleep
+_maix.time.sleep_ms = sleep_ms
+_maix.time.sleep_us = sleep_us