diff --git a/ets2panda/checker/types/ets/etsEnumType.cpp b/ets2panda/checker/types/ets/etsEnumType.cpp
index 2ff91ba0ca4a748b24dd7df25ed23dc97d4d1dab..233a403e0501e8a662fba2b7bd2ad9c056b0df62 100644
--- a/ets2panda/checker/types/ets/etsEnumType.cpp
+++ b/ets2panda/checker/types/ets/etsEnumType.cpp
@@ -61,6 +61,7 @@ void ETSStringEnumType::Cast(TypeRelation *const relation, Type *const target)
         return;
     }
     if (target->IsETSStringType()) {
+        relation->RaiseError(diagnostic::ENUM_DEPRECATED_CAST, {this, target}, relation->GetNode()->Start());
         relation->Result(true);
         return;
     }
@@ -70,6 +71,7 @@ void ETSStringEnumType::Cast(TypeRelation *const relation, Type *const target)
 void ETSStringEnumType::CastTarget(TypeRelation *relation, Type *source)
 {
     if (source->IsETSStringType()) {
+        relation->RaiseError(diagnostic::ENUM_DEPRECATED_CAST, {source, this}, relation->GetNode()->Start());
         relation->Result(true);
         return;
     }
@@ -115,6 +117,7 @@ void ETSIntEnumType::Cast(TypeRelation *const relation, Type *const target)
         return;
     }
     if (target->HasTypeFlag(TypeFlag::ETS_NUMERIC) || target->IsBuiltinNumeric()) {
+        relation->RaiseError(diagnostic::ENUM_DEPRECATED_CAST, {this, target}, relation->GetNode()->Start());
         relation->Result(true);
         return;
     }
@@ -123,11 +126,8 @@ void ETSIntEnumType::Cast(TypeRelation *const relation, Type *const target)
 
 void ETSIntEnumType::CastTarget(TypeRelation *relation, Type *source)
 {
-    if (source->IsIntType()) {
-        relation->Result(true);
-        return;
-    }
-    if (source->IsBuiltinNumeric()) {
+    if (source->IsIntType() || source->IsBuiltinNumeric()) {
+        relation->RaiseError(diagnostic::ENUM_DEPRECATED_CAST, {source, this}, relation->GetNode()->Start());
         relation->Result(true);
         return;
     }
diff --git a/ets2panda/checker/types/typeRelation.h b/ets2panda/checker/types/typeRelation.h
index ac87200fbce06c222e7618258bcee72f2aa1a2a8..33c32e789cfada5d83580cd839f5aacf80fa48e5 100644
--- a/ets2panda/checker/types/typeRelation.h
+++ b/ets2panda/checker/types/typeRelation.h
@@ -312,7 +312,6 @@ public:
     void RaiseError(const diagnostic::DiagnosticKind &kind, const lexer::SourcePosition &loc) const;
     void RaiseError(const diagnostic::DiagnosticKind &kind, const util::DiagnosticMessageParams &list,
                     const lexer::SourcePosition &loc) const;
-    void LogError(const util::DiagnosticMessageParams &list, const lexer::SourcePosition &loc) const;
 
     bool Result(bool res)
     {
diff --git a/ets2panda/test/ast/compiler/ets/enumConversions.ets b/ets2panda/test/ast/compiler/ets/enumConversions.ets
new file mode 100644
index 0000000000000000000000000000000000000000..353ca83e8fccc42181af47b2b18dd800dfbe3530
--- /dev/null
+++ b/ets2panda/test/ast/compiler/ets/enumConversions.ets
@@ -0,0 +1,35 @@
+/*
+ * 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.
+ */
+
+enum E {
+  a, b, c
+}
+
+enum EE {
+  a, b, c, d, e
+}
+
+function foo(e: E, i: int) {
+//   i = e  // OK if widening, otherwise - CTE
+  i = e as int  // CTE
+//   e = i  // CTE
+  e = 1 as E  // CTE
+//   e = E.fromValue(i)  // RTE, if i is not equal to one of enum constants, otherwise OK
+//   e = 1  // OK, 1 can be E.b
+//   e = 10 // CTE, 10 is out of range
+}
+
+/* @@? 26:7 Warning Warning: Enum cast is deprecated. Cast support from 'E' to 'Int' will be removed. */
+/* @@? 28:7 Warning Warning: Enum cast is deprecated. Cast support from 'Int' to 'E' will be removed. */
diff --git a/ets2panda/test/ast/parser/ets/FixedArray/enum11.ets b/ets2panda/test/ast/parser/ets/FixedArray/enum11.ets
index e50e7e009395b1ad9816c3aeb1a38b4d4f9cf1e6..44f291da40da477a7b0108f54aa3a5b88ac41c43 100644
--- a/ets2panda/test/ast/parser/ets/FixedArray/enum11.ets
+++ b/ets2panda/test/ast/parser/ets/FixedArray/enum11.ets
@@ -24,3 +24,5 @@ function main(): void {
 }
 
 /* @@@ label Error TypeError: Enum name 'Color' used in the wrong context  */
+/* @@? 21:22 Warning Warning: Enum cast is deprecated. Cast support from 'Color' to 'Int' will be removed. */
+/* @@? 22:13 Warning Warning: Enum cast is deprecated. Cast support from 'Int' to 'Color' will be removed. */
diff --git a/ets2panda/test/ast/parser/ets/enum.ets b/ets2panda/test/ast/parser/ets/enum.ets
index 041eb0f42f3c0f4e6ed37c784e39c8e5d6da8582..3443eb3f6c38ac0318e3b1f6bdbc74e170d7ec40 100644
--- a/ets2panda/test/ast/parser/ets/enum.ets
+++ b/ets2panda/test/ast/parser/ets/enum.ets
@@ -65,3 +65,5 @@ function main(): void {
       arktest.assertTrue(false)
   }
 }
+
+/* @@? 26:10 Warning Warning: Enum cast is deprecated. Cast support from 'Color' to 'Int' will be removed. */
diff --git a/ets2panda/test/ast/parser/ets/enum11.ets b/ets2panda/test/ast/parser/ets/enum11.ets
index 0e1d8e35b438b8899285779527accddc1d6a604d..c78d967491c138158f757858b21bd5b205dc833c 100644
--- a/ets2panda/test/ast/parser/ets/enum11.ets
+++ b/ets2panda/test/ast/parser/ets/enum11.ets
@@ -24,3 +24,5 @@ function main(): void {
 }
 
 /* @@@ label Error TypeError: Enum name 'Color' used in the wrong context  */
+/* @@? 21:22 Warning Warning: Enum cast is deprecated. Cast support from 'Color' to 'Int' will be removed. */
+/* @@? 22:13 Warning Warning: Enum cast is deprecated. Cast support from 'Int' to 'Color' will be removed. */
diff --git a/ets2panda/util/diagnostic/warning.yaml b/ets2panda/util/diagnostic/warning.yaml
index 71701fcf70a2e8489969e376178d119bbe0b13d3..49f08b5c8e8b958c210840575bc304cb9f7333e1 100644
--- a/ets2panda/util/diagnostic/warning.yaml
+++ b/ets2panda/util/diagnostic/warning.yaml
@@ -29,6 +29,10 @@ warning:
   id: 12
   message: "Detect duplicate signatures, use '{}{}' to replace"
 
+- name: ENUM_DEPRECATED_CAST
+  id: 30
+  message: "Enum cast is deprecated. Cast support from '{}' to '{}' will be removed."
+
 - name: EXTENSION_MISMATCH
   id: 25
   message: "Not matching extensions! Sourcefile: {}, Manual(used): {}"