diff --git a/src/component/tooltip/TooltipView.ts b/src/component/tooltip/TooltipView.ts
index 044a12ffca..17fef2296f 100644
--- a/src/component/tooltip/TooltipView.ts
+++ b/src/component/tooltip/TooltipView.ts
@@ -20,7 +20,7 @@ import { bind, each, clone, trim, isString, isFunction, isArray, isObject, exten
 import env from 'zrender/src/core/env';
 import TooltipHTMLContent from './TooltipHTMLContent';
 import TooltipRichContent from './TooltipRichContent';
-import { convertToColorString, encodeHTML, formatTpl, TooltipMarker } from '../../util/format';
+import { convertToColorString, encodeHTML, formatTpl } from '../../util/format';
 import { parsePercent } from '../../util/number';
 import { Rect } from '../../util/graphic';
 import findPointFromSeries from '../axisPointer/findPointFromSeries';
@@ -124,16 +124,7 @@ interface TryShowParams {
     positionDefault?: TooltipOption['position']
 }
 
-type TooltipCallbackDataParams = CallbackDataParams & {
-    axisDim?: string
-    axisIndex?: number
-    axisType?: string
-    axisId?: string
-    // TODO: TYPE Value type
-    axisValue?: string | number
-    axisValueLabel?: string
-    marker?: TooltipMarker
-};
+type TooltipCallbackDataParams = CallbackDataParams;
 
 class TooltipView extends ComponentView {
     static type = 'tooltip' as const;
diff --git a/src/util/types.ts b/src/util/types.ts
index 3496f5eacc..5312234cd7 100644
--- a/src/util/types.ts
+++ b/src/util/types.ts
@@ -980,6 +980,14 @@ export interface CallbackDataParams {
     dimensionIndex?: number;
     percent?: number; // Only for chart like 'pie'
 
+    // Axis context properties (provided in axis callbacks or axis-triggered tooltips)
+    axisDim?: string;
+    axisIndex?: number;
+    axisType?: string;
+    axisId?: string;
+    axisValue?: string | number;
+    axisValueLabel?: string;
+
     // Param name list for mapping `a`, `b`, `c`, `d`, `e`
     $vars: string[];
 }
diff --git a/test/ut/spec/util/types.test.ts b/test/ut/spec/util/types.test.ts
new file mode 100644
index 0000000000..c7f629b7d0
--- /dev/null
+++ b/test/ut/spec/util/types.test.ts
@@ -0,0 +1,64 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you 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.
+*/
+
+import { CallbackDataParams } from '@/src/util/types';
+
+describe('util/types', function () {
+    describe('CallbackDataParams', function () {
+        it('should allow accessing axis context properties without type assertions', function () {
+            const params: CallbackDataParams = {
+                componentType: 'series',
+                componentSubType: 'line',
+                componentIndex: 0,
+                seriesType: 'line',
+                seriesIndex: 0,
+                seriesId: 'series_0',
+                seriesName: 'Sales',
+                name: 'Monday',
+                dataIndex: 1,
+                data: 120,
+                value: 120,
+                $vars: ['name', 'value'],
+                axisDim: 'x',
+                axisIndex: 0,
+                axisType: 'categoryAxis',
+                axisId: 'xAxis_0',
+                axisValue: 1,
+                axisValueLabel: 'Monday'
+            };
+
+            expect(params.axisDim).toBe('x');
+            expect(params.axisIndex).toBe(0);
+            expect(params.axisType).toBe('categoryAxis');
+            expect(params.axisId).toBe('xAxis_0');
+            expect(params.axisValue).toBe(1);
+            expect(params.axisValueLabel).toBe('Monday');
+
+            // Formatter simulation using CallbackDataParams
+            function formatTooltip(cbParams: CallbackDataParams): string {
+                if (cbParams.axisValueLabel != null) {
+                    return `${cbParams.axisValueLabel}: ${cbParams.value}`;
+                }
+                return `${cbParams.name}: ${cbParams.value}`;
+            }
+
+            expect(formatTooltip(params)).toBe('Monday: 120');
+        });
+    });
+});