diff --git a/src/Plugin/Field/FieldWidget/InlineEntityFormBase.php b/src/Plugin/Field/FieldWidget/InlineEntityFormBase.php
index b33bedc..818fa27 100644
--- a/src/Plugin/Field/FieldWidget/InlineEntityFormBase.php
+++ b/src/Plugin/Field/FieldWidget/InlineEntityFormBase.php
@@ -595,6 +595,10 @@ abstract class InlineEntityFormBase extends WidgetBase implements ContainerFacto
       // multilingual and not be hidden, see
       // \Drupal\content_translation\ContentTranslationHandler::entityFormSharedElements().
       $elements['#multilingual'] = TRUE;
+      // If field item config is not translatable, should not set multilingual as true.
+      if (!$form_state->getFormObject()->getEntity()->isDefaultTranslation() && !$items->getFieldDefinition()->isTranslatable()) {
+        $elements['#multilingual'] = FALSE;
+      }
       return $elements;
     }
     return [];