diff --git a/README.md b/README.md
index f77eb2f9..ac0d7614 100644
--- a/README.md
+++ b/README.md
@@ -392,6 +392,7 @@ plugins: [
 
 // Values
 strictMode      : Option to disable clean mode, which checks the styles, classes, etc. of the editor content.   default : false {Boolean}
+strictHTMLValidation : Enforces strict HTML validation based on the editor`s policy. Applies to methods like setContents to ensure content compliance when enabled. default: false {Boolean}
 lang            : language object.   default : en {Object}
 defaultTag      : Specifies default tag name of the editor.     default: 'p' {String}
 textTags        : You can change the tag of the default text button.   default: { bold: 'STRONG', underline: 'U', italic: 'EM', strike: 'DEL' }
diff --git a/src/lib/constructor.js b/src/lib/constructor.js
index 323c39c9..d1a39f97 100755
--- a/src/lib/constructor.js
+++ b/src/lib/constructor.js
@@ -416,6 +416,7 @@ export default {
         options.plugins = plugins;
         /** Values */
         options.strictMode = options.strictMode !== false;
+        options.strictHTMLValidation = options.strictHTMLValidation === true;
         options.lang = options.lang || _defaultLang;
         options.value = typeof options.value === 'string' ? options.value : null;
         options.allowedClassNames = new util._w.RegExp((options.allowedClassNames && typeof options.allowedClassNames === 'string' ? options.allowedClassNames + '|' : '') + '^__se__|se-|katex');
diff --git a/src/lib/core.js b/src/lib/core.js
index 0eab5e8e..1bc47cd6 100755
--- a/src/lib/core.js
+++ b/src/lib/core.js
@@ -5543,7 +5543,11 @@ export default function (context, pluginCallButtons, plugins, lang, options, _re
             const dom = _d.createRange().createContextualFragment(contents);
 
             try {
-                util._consistencyCheckOfHTML(dom, this._htmlCheckWhitelistRegExp, this._htmlCheckBlacklistRegExp, this._classNameFilter);
+                if (this.options.strictHTMLValidation) {
+                    util._consistencyCheckOfHTML(dom, this._htmlCheckWhitelistRegExp, this._htmlCheckBlacklistRegExp, this._classNameFilter);
+                } else {
+                    util._consistencyCheckOfHTML(dom, this._htmlCheckWhitelistRegExp, false);
+                }
             } catch (error) {
                 console.warn('[SUNEDITOR.convertContentsForEditor.consistencyCheck.fail] ' + error);
             }
diff --git a/src/options.d.ts b/src/options.d.ts
index 808a2b2a..f5f663f6 100644
--- a/src/options.d.ts
+++ b/src/options.d.ts
@@ -7,6 +7,10 @@ export interface SunEditorOptions {
      * Option to disable clean mode, which checks the styles, classes, etc. of the editor content
      */
     strictMode?: boolean;
+    /**
+     * Enforces strict HTML validation based on the editor`s policy. Applies to methods like setContents to ensure content compliance when enabled.
+     */
+    strictHTMLValidation?: boolean;
     /**
      * Values
      * ======
diff --git a/test/dev/suneditor_build_test.js b/test/dev/suneditor_build_test.js
index 481af51f..0ac7c3cf 100644
--- a/test/dev/suneditor_build_test.js
+++ b/test/dev/suneditor_build_test.js
@@ -989,6 +989,7 @@ let s2 = window.s2 = suneditor.create(document.getElementById('editor2'), {
 //     `,
 // imageUploadUrl: 'http://localhost:3000/editor/upload',
     // strictMode: false,
+    // strictHTMLValidation: true,
     allowedClassNames: '.',
     width: '100%',
     // fontSizeUnit: 'em',