diff --git a/Lib/inspect.py b/Lib/inspect.py
index 8bb3a375735af6..0acc9789441b1d 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -410,12 +410,20 @@ def markcoroutinefunction(func):
     func._is_coroutine_marker = _is_coroutine_marker
     return func
 
+_agen_methods = ("__anext__", "aclose", "asend", "athrow")
+
 def iscoroutinefunction(obj):
     """Return true if the object is a coroutine function.
 
     Coroutine functions are normally defined with "async def" syntax, but may
     be marked via markcoroutinefunction.
     """
+    #check if obj is async gen method and returns awaitable
+    obj = functools._unwrap_partial(obj)
+    is_valid = isbuiltin(obj) or ismethodwrapper(obj)
+    if is_valid and isasyncgen(obj.__self__) and obj.__name__ in _agen_methods:
+        return True
+    #now regular case
     return _has_code_flag(obj, CO_COROUTINE) or _has_coroutine_mark(obj)
 
 def isasyncgenfunction(obj):
diff --git a/Misc/NEWS.d/next/Library/2023-02-22-02-14-38.gh-issue-81371.tUo0u1.rst b/Misc/NEWS.d/next/Library/2023-02-22-02-14-38.gh-issue-81371.tUo0u1.rst
new file mode 100644
index 00000000000000..b031986179e76c
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2023-02-22-02-14-38.gh-issue-81371.tUo0u1.rst
@@ -0,0 +1 @@
+This PR may fix the issue 81371