diff --git a/tf_adapter/python/npu_bridge/estimator/npu/npu_scope.py b/tf_adapter/python/npu_bridge/estimator/npu/npu_scope.py
index 63eb0ce6544f87a3009bfaf367d25ed79145c156..20547f5879dadb73794dbd8b359c2619b3591c90 100644
--- a/tf_adapter/python/npu_bridge/estimator/npu/npu_scope.py
+++ b/tf_adapter/python/npu_bridge/estimator/npu/npu_scope.py
@@ -218,3 +218,23 @@ def disable_autofuse():
     }
     with ops.get_default_graph()._attr_scope(attrs):
         yield
+
+
+@contextlib.contextmanager
+def limit_core_num_scope(op_aicore_num="0", op_vectorore_num="0"):
+    """
+    Limit the aic abd aiv core num of autofuse operators within the scope.
+    """
+    if not isinstance(op_vectorore_num, str):
+        raise ValueError("Param op_vectorore_num must be string.")
+    try:
+        int_vector_core_num = int(op_vectorore_num)
+    except ValueError:
+        raise ValueError("Param op_vectorore_num can not be translated into a valid int number.")
+    if not (0 < int_vector_core_num < 48):
+        raise ValueError("Param op_vectorore_num must be in a valid range.")
+    attrs = {
+        "_op_vectorcore_num": attr_value_pb2.AttrValue(s=compat.as_bytes(op_vectorore_num))
+    }
+    with ops.get_default_graph()._attr_scope(attrs):
+        yield