diff --git a/ets2panda/parser/parserImpl.cpp b/ets2panda/parser/parserImpl.cpp
index 409e4ef4f6243cd88770cfcd40abca7e363f13dd..304958e47c1f324bffeff6bd7cd0df9c1b49e84c 100644
--- a/ets2panda/parser/parserImpl.cpp
+++ b/ets2panda/parser/parserImpl.cpp
@@ -964,6 +964,11 @@ FunctionSignature ParserImpl::ParseFunctionSignature(ParserStatus status)
 {
     ir::TSTypeParameterDeclaration *typeParamDecl = ParseFunctionTypeParameters();
 
+    // Check if constructor has type parameters
+    if ((status & ParserStatus::CONSTRUCTOR_FUNCTION) != 0 && typeParamDecl != nullptr) {
+        LogError(diagnostic::CONSTRUCTOR_TYPE_PARAMETERS);
+    }
+
     if (lexer_->GetToken().Type() != lexer::TokenType::PUNCTUATOR_LEFT_PARENTHESIS) {
         auto parameter = (status & ParserStatus::ARROW_FUNCTION) != 0 ? ParseFunctionParameter() : nullptr;
         if (parameter != nullptr) {
diff --git a/ets2panda/test/ast/parser/ets/constructor_no_type_parameters.ets b/ets2panda/test/ast/parser/ets/constructor_no_type_parameters.ets
new file mode 100644
index 0000000000000000000000000000000000000000..9f5695c28969865c29577d9c4d346fd685bc60ab
--- /dev/null
+++ b/ets2panda/test/ast/parser/ets/constructor_no_type_parameters.ets
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2025 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+class C {
+  constructor(x: int) {}
+}
+
+class D<T> {
+  constructor(x: T) {}
+} 
diff --git a/ets2panda/test/ast/parser/ets/constructor_type_parameters.ets b/ets2panda/test/ast/parser/ets/constructor_type_parameters.ets
new file mode 100644
index 0000000000000000000000000000000000000000..ff1194075b9aad7afca50984b7a91e611b1e07b0
--- /dev/null
+++ b/ets2panda/test/ast/parser/ets/constructor_type_parameters.ets
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2025 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+class C {
+  constructor<T>(x: T) {}
+}
+
+/* @@? 17:17 Error SyntaxError: Constructor should not have type parameters. */ 
diff --git a/ets2panda/test/ast/parser/ets/type_variance2.ets b/ets2panda/test/ast/parser/ets/type_variance2.ets
index 67d7a48464199ebb03ddf3328a46bac9afb687b6..c7b077b0b6d2ae67d8c467c912f2edf81e0ec8e9 100644
--- a/ets2panda/test/ast/parser/ets/type_variance2.ets
+++ b/ets2panda/test/ast/parser/ets/type_variance2.ets
@@ -18,3 +18,4 @@ class C {
 }
 
 /* @@@ label Error SyntaxError: Variance modifier is not allowed here.  */
+/* @@? 17:35 Error SyntaxError: Constructor should not have type parameters. */
diff --git a/ets2panda/util/diagnostic/syntax.yaml b/ets2panda/util/diagnostic/syntax.yaml
index bfc4c833fee12b73b0133ec6f9476fbc1b61fa0b..82705a71d7c72c55a686a7616db3dc19b0f25bd9 100644
--- a/ets2panda/util/diagnostic/syntax.yaml
+++ b/ets2panda/util/diagnostic/syntax.yaml
@@ -145,6 +145,10 @@ syntax:
   id: 127
   message: "Conflicting modifiers '!' and '?' on field."
 
+- name: CONSTRUCTOR_TYPE_PARAMETERS
+  id: 330
+  message: "Constructor should not have type parameters."
+
 - name: DECALRE_IN_AMBIENT_CONTEXT
   id: 104
   message: "A 'declare' modifier cannot be used in an already ambient context."
@@ -227,8 +231,8 @@ syntax:
 
 - name: ERROR_ARKTS_NO_FOR_IN_LOOP
   id: 6987
-  message: "'for ... in' loop is not supported, please use regular 'for' or 'for ... of ...' loop to iterate through arrays
-    and iterable objects."
+  message: "'for ... in' loop is not supported, please use regular 'for' or 'for ... of ...' loop to iterate through arrays\
+    \ and iterable objects."
 
 - name: ERROR_ARKTS_NO_IMPORT_ASSERTIONS
   id: 313
@@ -252,8 +256,8 @@ syntax:
 
 - name: ERROR_ARKTS_NO_SIDE_EFFECT_IMPORT
   id: 73297
-  message: "Importing for side-effect only is prohibited! Please provide objects to be imported explicitly or use * to import
-    all objects declared in the module!"
+  message: "Importing for side-effect only is prohibited! Please provide objects to be imported explicitly or use * to import\
+    \ all objects declared in the module!"
 
 - name: ERROR_ARKTS_NO_UMD
   id: 114179
@@ -453,8 +457,8 @@ syntax:
 
 - name: IMPORT_TOP_LEVEL
   id: 226
-  message: "Import declarations can only be used on the top level and before any other declaration, top level statement or
-    directive."
+  message: "Import declarations can only be used on the top level and before any other declaration, top level statement or\
+    \ directive."
 
 - name: IMPROPER_NESTING_CLASS
   id: 233
@@ -486,8 +490,8 @@ syntax:
 
 - name: INIT_MODULE_DECLARATION_POSITION
   id: 322
-  message: "initModule() must only be called immediately after the import statement, and before any other declarations or
-    statements."
+  message: "initModule() must only be called immediately after the import statement, and before any other declarations or\
+    \ statements."
 
 - name: INSERT_NODE_ABSENT
   id: 10
@@ -571,8 +575,8 @@ syntax:
 
 - name: INVALID_DECORATOR_CONSTRUCTOR
   id: 201
-  message: "The modifier for a constructor should be limited to access modifiers (private, internal, protected, public), and
-    'native' modifiers."
+  message: "The modifier for a constructor should be limited to access modifiers (private, internal, protected, public), and\
+    \ 'native' modifiers."
 
 - name: INVALID_DESTRUCTURING_TARGET
   id: 49
@@ -740,8 +744,8 @@ syntax:
 
 - name: LITERAL_VALUE_IDENT
   id: 315
-  message: "Number, string or computed value property name '{}' is not allowed, use classes to access data by property names
-    that are identifiers"
+  message: "Number, string or computed value property name '{}' is not allowed, use classes to access data by property names\
+    \ that are identifiers"
 
 - name: LOCAL_CLASS_ACCESS_MOD
   id: 30
@@ -1226,8 +1230,8 @@ syntax:
 
 - name: UNSUPPORTED_ENUM_TYPE
   id: 327
-  message: "Unsupported enum type annotation. Supported enum types are: int, long or double. String is allowed for literal
-    types, not annotations."
+  message: "Unsupported enum type annotation. Supported enum types are: int, long or double. String is allowed for literal\
+    \ types, not annotations."
 
 - name: UNTERMINATED_MULTI_LINE_COMMENT
   id: 245