diff --git a/mindinsight/mindconverter/graph_based_converter/generator/generator.py b/mindinsight/mindconverter/graph_based_converter/generator/generator.py
index f39f8bbb..8f39e0d1 100644
--- a/mindinsight/mindconverter/graph_based_converter/generator/generator.py
+++ b/mindinsight/mindconverter/graph_based_converter/generator/generator.py
@@ -137,7 +137,7 @@ class CodeStruct:
         self.new_line = f"{NEW_LINE * 2}"
 
         # define header of construct block
-        inputs = ['self'] + list(md_struct.construct_header_x.keys())
+        inputs = ['self'] + list(md_struct.inputs_register.values())
         self.new_line = f"{FIRST_LEVEL_INDENT}def construct({', '.join(inputs)}):"
         # add construct code lines to code line list.
         self.code_line_list += cons_lines
diff --git a/mindinsight/mindconverter/graph_based_converter/generator/matcher.py b/mindinsight/mindconverter/graph_based_converter/generator/matcher.py
index 7a0a7981..e29ef0a1 100644
--- a/mindinsight/mindconverter/graph_based_converter/generator/matcher.py
+++ b/mindinsight/mindconverter/graph_based_converter/generator/matcher.py
@@ -26,15 +26,27 @@ class MatcherHelper:
         """Call in preprocess"""
         # allocate main model construct x
         prec_edges = main_model.external_precursor_nodes_names
-        default_x_str = "x"
+        graph_inputs = GlobalContext().onnx_graph_info.get('graph_inputs')
         inputs = dict()
-        for idx, edge in enumerate(prec_edges):
-            if not edge in inputs:
-                # idx-1 here as we have a x without index and another x0 in module inputs
-                # so the idx 0 position is the second input, not the first x.
-                inputs[edge] = "".join([default_x_str, str(idx-1)]) if idx > 0 else default_x_str
+        for edge in graph_inputs:
+            if not edge in inputs and edge in prec_edges:
+                regular_edge = MatcherHelper.regular_edge_name(edge)
+                inputs[edge] = regular_edge
         main_model.inputs_register = inputs
 
+    @staticmethod
+    def regular_edge_name(name: str) -> str:
+        """Regular the edge name to adapt the python grammar."""
+        regular = ""
+        for char in name:
+            if char.isalpha() or char.isdigit():
+                regular = f"{regular}{char}"
+            else:
+                regular = f"{regular}_"
+        if not regular[0].isalpha():
+            regular = f"input_{regular}"
+        return regular
+
     @staticmethod
     def get_public_parent_module(node_a: NodeStruct, node_b: NodeStruct):
         """Return the public parent module of both Node A and Node B."""
diff --git a/mindinsight/mindconverter/graph_based_converter/generator/module_struct.py b/mindinsight/mindconverter/graph_based_converter/generator/module_struct.py
index 690a1a9a..d12a7b3d 100644
--- a/mindinsight/mindconverter/graph_based_converter/generator/module_struct.py
+++ b/mindinsight/mindconverter/graph_based_converter/generator/module_struct.py
@@ -79,7 +79,7 @@ class ModuleStruct:
         self.rapid_reference = dict()
 
         # new vars for matcher
-        self.inputs_register = dict() # reg by sub
+        self.inputs_register = OrderedDict() # reg by sub
         self.outputs_register = OrderedDict() # reg by sub
         self.internal_outputs_collection = dict() # reg by sub
 
diff --git a/mindinsight/mindconverter/graph_based_converter/third_party_graph/onnx_utils.py b/mindinsight/mindconverter/graph_based_converter/third_party_graph/onnx_utils.py
index 9982870e..4bb70f44 100644
--- a/mindinsight/mindconverter/graph_based_converter/third_party_graph/onnx_utils.py
+++ b/mindinsight/mindconverter/graph_based_converter/third_party_graph/onnx_utils.py
@@ -496,6 +496,9 @@ class OnnxDataLoader:
         """Parse ONNX Graph Info For usage in generator."""
         graph_inputs = [inp.name for inp in self.graph.input]
         graph_outputs = [out.name for out in self.graph.output]
+        for output_node in self.output_nodes:
+            if output_node not in graph_outputs:
+                raise ValueError(f"Unexpected Node {output_node} detected which should not be a graph output.")
         self._global_context.onnx_graph_info['graph_inputs'] = graph_inputs
         self._global_context.onnx_graph_info['graph_outputs'] = graph_outputs