diff --git a/README.md b/README.md
index e10c5dd6..6392e548 100644
--- a/README.md
+++ b/README.md
@@ -483,6 +483,9 @@ gitlink-cli attachment +upload -f ./dist/app-v1.0.0.tar.gz -d "v1.0.0 release as
 
 # Download an attachment by id to a local file
 gitlink-cli attachment +download -i <attachment_id> -o ./app-v1.0.0.tar.gz
+
+# Delete an attachment by id
+gitlink-cli attachment +delete -i <attachment_id>
 ```
 
 ### CI/CD Operations
diff --git a/README.zh-CN.md b/README.zh-CN.md
index f8747a81..b878bf9a 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -474,6 +474,9 @@ gitlink-cli attachment +upload -f ./dist/app-v1.0.0.tar.gz -d "v1.0.0 发布产
 
 # 按 id 下载附件到本地文件
 gitlink-cli attachment +download -i <attachment_id> -o ./app-v1.0.0.tar.gz
+
+# 按 id 删除附件
+gitlink-cli attachment +delete -i <attachment_id>
 ```
 
 ### 流水线管理
diff --git a/internal/i18n/locales/en-US.json b/internal/i18n/locales/en-US.json
index f376ffe8..184ada00 100644
--- a/internal/i18n/locales/en-US.json
+++ b/internal/i18n/locales/en-US.json
@@ -1,6 +1,8 @@
 {
   "cmd.api.long": "Send arbitrary HTTP requests to the GitLink API. Authentication is injected automatically.",
   "cmd.api.short": "Make raw API requests to GitLink",
+  "cmd.attachment.delete.long": "Delete a platform attachment by id or uuid. Only the attachment owner can delete it.",
+  "cmd.attachment.delete.short": "Delete an attachment by id",
   "cmd.attachment.download.long": "Download a platform attachment by id and stream it to a local file.",
   "cmd.attachment.download.short": "Download an attachment to a local file",
   "cmd.attachment.short": "Attachment upload and download",
diff --git a/internal/i18n/locales/zh-CN.json b/internal/i18n/locales/zh-CN.json
index b6481957..9e623da2 100644
--- a/internal/i18n/locales/zh-CN.json
+++ b/internal/i18n/locales/zh-CN.json
@@ -1,6 +1,8 @@
 {
   "cmd.api.long": "向 GitLink API 发送任意 HTTP 请求。认证信息会自动注入。",
   "cmd.api.short": "向 GitLink 发起原始 API 请求",
+  "cmd.attachment.delete.long": "按 id 或 uuid 删除平台附件。仅附件所有者可删除。",
+  "cmd.attachment.delete.short": "按 id 删除附件",
   "cmd.attachment.download.long": "按 id 下载平台附件并流式写入本地文件。",
   "cmd.attachment.download.short": "下载附件到本地文件",
   "cmd.attachment.short": "附件上传与下载",
diff --git a/shortcuts/attachment/attachment.go b/shortcuts/attachment/attachment.go
index fadd1009..1677d7bc 100644
--- a/shortcuts/attachment/attachment.go
+++ b/shortcuts/attachment/attachment.go
@@ -82,5 +82,24 @@ func Shortcuts(translators ...*i18n.Translator) []*common.Shortcut {
 				})
 			},
 		},
+		{
+			Name:        "delete",
+			Description: tr.T("cmd.attachment.delete.short"),
+			Long:        tr.T("cmd.attachment.delete.long"),
+			Flags: []common.Flag{
+				{Name: "id", Short: "i", Usage: tr.T("flag.attachment.id"), Required: true},
+			},
+			Run: func(ctx *common.RuntimeContext) error {
+				id, err := ctx.RequireArg("id")
+				if err != nil {
+					return err
+				}
+				env, err := ctx.Client.Delete("/attachments/"+id, nil)
+				if err != nil {
+					return err
+				}
+				return ctx.Output(env)
+			},
+		},
 	}
 }
diff --git a/shortcuts/attachment/attachment_test.go b/shortcuts/attachment/attachment_test.go
index a67bf4b0..54a049f3 100644
--- a/shortcuts/attachment/attachment_test.go
+++ b/shortcuts/attachment/attachment_test.go
@@ -16,8 +16,8 @@ import (
 
 func TestShortcutsRegistered(t *testing.T) {
 	shortcuts := Shortcuts()
-	if len(shortcuts) != 2 {
-		t.Fatalf("expected 2 shortcuts, got %d", len(shortcuts))
+	if len(shortcuts) != 3 {
+		t.Fatalf("expected 3 shortcuts, got %d", len(shortcuts))
 	}
 	names := map[string]bool{}
 	for _, s := range shortcuts {
@@ -26,7 +26,7 @@ func TestShortcutsRegistered(t *testing.T) {
 			t.Fatalf("shortcut %q has empty description", s.Name)
 		}
 	}
-	for _, want := range []string{"upload", "download"} {
+	for _, want := range []string{"upload", "download", "delete"} {
 		if !names[want] {
 			t.Fatalf("missing shortcut %q", want)
 		}
@@ -190,3 +190,24 @@ func TestDownloadHTTPError(t *testing.T) {
 		t.Fatal("output file should not be created on HTTP error")
 	}
 }
+
+func TestDeleteAttachment(t *testing.T) {
+	var gotMethod, gotPath string
+	ctx := newTestContext(t, func(w http.ResponseWriter, r *http.Request) {
+		gotMethod = r.Method
+		gotPath = r.URL.Path
+		w.Header().Set("Content-Type", "application/json")
+		json.NewEncoder(w).Encode(map[string]interface{}{"status": 0, "message": "删除成功"})
+	}, map[string]string{"id": "abc-uuid"})
+	ctx.Tr = i18n.Default()
+
+	if err := findShortcut(t, "delete").Run(ctx); err != nil {
+		t.Fatalf("delete error: %v", err)
+	}
+	if gotMethod != http.MethodDelete {
+		t.Fatalf("method = %q, want DELETE", gotMethod)
+	}
+	if gotPath != "/attachments/abc-uuid.json" {
+		t.Fatalf("path = %q, want /attachments/abc-uuid.json", gotPath)
+	}
+}