diff --git a/SCM/s1_go_lessie_api.groovy b/SCM/s1_go_lessie_api.groovy
index c366ff4..979579e 100644
--- a/SCM/s1_go_lessie_api.groovy
+++ b/SCM/s1_go_lessie_api.groovy
@@ -237,12 +237,13 @@ pipeline {
     post {
         always {
             script {
-                echo "开始清理本地旧镜像，仅保留最近 2 个构建版本"
                 def keepCount = 2
+                echo "开始清理本地旧镜像，仅保留最近 ${keepCount} 个构建版本"
                 def imagePrefix = "${REGISTRY}/${NAMESPACE}/${IMAGE_NAME}"
 
                 // 获取所有镜像（按创建时间排序，越新的越前）
-                def allImagesRaw = sh(script: "docker images ${imagePrefix} --format '{{.ID}} {{.Repository}}:{{.Tag}}' | sort -rk1", returnStdout: true).trim()
+                // 格式：Repository:Tag ImageID CreatedAt
+                def allImagesRaw = sh(script: "docker images ${imagePrefix} --format '{{.Repository}}:{{.Tag}} {{.ID}} {{.CreatedAt}}' | sort -rk3", returnStdout: true).trim()
                 if (!allImagesRaw) {
                     echo "未找到任何镜像，无需清理"
                     return
@@ -256,13 +257,28 @@ pipeline {
 
                 def oldImages = allImages.drop(keepCount)
                 echo "发现 ${oldImages.size()} 个旧镜像需要清理"
+                oldImages.each { line ->
+                    echo "  ${line}"
+                }
 
                 oldImages.each { line ->
                     def parts = line.split(' ')
-                    def imageId = parts[0]
-                    def imageTag = parts[1]
-                    echo "删除旧镜像: ${imageTag} (ID: ${imageId})"
-                    sh "docker rmi -f \"${imageId}"\ || true"
+                    def imageTag = parts[0]
+                    def imageId = parts.size() > 1 ? parts[1] : ""
+                    
+                    // 对于标签为<none>的无效镜像，使用镜像ID删除
+                    if (imageTag.contains("<none>") && imageId) {
+                        echo "删除无效镜像: ${imageId}"
+                        sh(returnStatus: true, script: "docker rmi -f ${imageId} || true")
+                    } else if (imageId) {
+                        // 对于有标签的有效镜像，优先使用镜像ID删除
+                        echo "删除旧镜像: ${imageTag} (${imageId})"
+                        sh(returnStatus: true, script: "docker rmi -f ${imageId} || true")
+                    } else {
+                        // 兜底方案，使用标签删除
+                        echo "删除旧镜像: ${imageTag}"
+                        sh(returnStatus: true, script: "docker rmi -f ${imageTag} || true")
+                    }
                 }
 
                 echo "清理完成，当前镜像状态："
diff --git a/SCM/s1_python_lessie_agents.groovy b/SCM/s1_python_lessie_agents.groovy
index b8a114b..0393d77 100644
--- a/SCM/s1_python_lessie_agents.groovy
+++ b/SCM/s1_python_lessie_agents.groovy
@@ -217,12 +217,13 @@ pipeline {
     post {
         always {
             script {
-                echo "开始清理本地旧镜像，仅保留最近 2 个构建版本"
                 def keepCount = 2
+                echo "开始清理本地旧镜像，仅保留最近 ${keepCount} 个构建版本"
                 def imagePrefix = "${REGISTRY}/${NAMESPACE}/${IMAGE_NAME}"
 
                 // 获取所有镜像（按创建时间排序，越新的越前）
-                def allImagesRaw = sh(script: "docker images ${imagePrefix} --format '{{.Repository}}:{{.Tag}} {{.CreatedAt}}' | sort -rk2", returnStdout: true).trim()
+                // 格式：Repository:Tag ImageID CreatedAt
+                def allImagesRaw = sh(script: "docker images ${imagePrefix} --format '{{.Repository}}:{{.Tag}} {{.ID}} {{.CreatedAt}}' | sort -rk3", returnStdout: true).trim()
                 if (!allImagesRaw) {
                     echo "未找到任何镜像，无需清理"
                     return
@@ -236,13 +237,28 @@ pipeline {
 
                 def oldImages = allImages.drop(keepCount)
                 echo "发现 ${oldImages.size()} 个旧镜像需要清理"
+                oldImages.each { line ->
+                    echo "  ${line}"
+                }
 
                 oldImages.each { line ->
                     def parts = line.split(' ')
-                    def imageId = parts[0]
-                    def imageTag = parts[1]
-                    echo "删除旧镜像: ${imageTag} (ID: ${imageId})"
-                    sh "docker rmi -f \"${imageId}"\ || true"
+                    def imageTag = parts[0]
+                    def imageId = parts.size() > 1 ? parts[1] : ""
+                    
+                    // 对于标签为<none>的无效镜像，使用镜像ID删除
+                    if (imageTag.contains("<none>") && imageId) {
+                        echo "删除无效镜像: ${imageId}"
+                        sh(returnStatus: true, script: "docker rmi -f ${imageId} || true")
+                    } else if (imageId) {
+                        // 对于有标签的有效镜像，优先使用镜像ID删除
+                        echo "删除旧镜像: ${imageTag} (${imageId})"
+                        sh(returnStatus: true, script: "docker rmi -f ${imageId} || true")
+                    } else {
+                        // 兜底方案，使用标签删除
+                        echo "删除旧镜像: ${imageTag}"
+                        sh(returnStatus: true, script: "docker rmi -f ${imageTag} || true")
+                    }
                 }
 
                 echo "清理完成，当前镜像状态："