diff --git a/dubbo-config/dubbo-config-spring/src/main/resources/META-INF/dubbo.xsd b/dubbo-config/dubbo-config-spring/src/main/resources/META-INF/dubbo.xsd
index 4e96970e11..c840300cf8 100644
--- a/dubbo-config/dubbo-config-spring/src/main/resources/META-INF/dubbo.xsd
+++ b/dubbo-config/dubbo-config-spring/src/main/resources/META-INF/dubbo.xsd
@@ -354,11 +354,6 @@
                         <xsd:documentation><![CDATA[ The serialization protocol of service. ]]></xsd:documentation>
                     </xsd:annotation>
                 </xsd:attribute>
-                <xsd:attribute name="prefer-serialization" type="xsd:string">
-                    <xsd:annotation>
-                        <xsd:documentation><![CDATA[ The prefer serialization protocol of service, multiple serialization protocol are separated by commas, default hessian2. ]]></xsd:documentation>
-                    </xsd:annotation>
-                </xsd:attribute>
                 <xsd:attribute name="export-async" type="xsd:boolean">
                     <xsd:annotation>
                         <xsd:documentation>