diff --git a/backend/internal/cli/root.go b/backend/internal/cli/root.go
index 736e22f..0c019f4 100644
--- a/backend/internal/cli/root.go
+++ b/backend/internal/cli/root.go
@@ -81,7 +81,7 @@ func newRootCommand() *cobra.Command {
 		newLogsCommand(), newConfigCommand(), newBackupCommand(), newRestoreCommand(),
 		newServiceCommand(), newDNSCommand(),
 	)
-	for _, name := range []string{"domain", "server", "ssh-key", "renew", "deploy"} {
+	for _, name := range []string{"domain", "server", "renew", "deploy"} {
 		root.AddCommand(newRetiredBusinessCommand(name))
 	}
 	localizeHelpFlags(root)
diff --git a/backend/internal/cli/scope_test.go b/backend/internal/cli/scope_test.go
index 233f80c..a3ce272 100644
--- a/backend/internal/cli/scope_test.go
+++ b/backend/internal/cli/scope_test.go
@@ -33,7 +33,7 @@ func TestRootExposesOnlyOperationalCommands(t *testing.T) {
 	if err := root.Execute(); err != nil {
 		t.Fatal(err)
 	}
-	for _, name := range []string{"domain", "server", "ssh-key", "renew", "deploy"} {
+	for _, name := range []string{"domain", "server", "renew", "deploy"} {
 		if strings.Contains(output.String(), "\n  "+name+" ") {
 			t.Errorf("正式帮助仍展示历史业务命令：%s", name)
 		}
@@ -48,8 +48,6 @@ func TestRetiredBusinessCommandsRejectBeforeAccessingData(t *testing.T) {
 		{"domain", "import", "--private-key", "not-a-real-key.pem"},
 		{"server", "add", "--password", "test-secret-not-real"},
 		{"server", "delete", "--id", "example"},
-		{"ssh-key", "add", "--name", "example"},
-		{"ssh-key", "delete", "--id", "example"},
 		{"renew"},
 		{"renew", "--id", "example"},
 		{"deploy", "--id", "example"},
diff --git a/backend/internal/httpapi/server.go b/backend/internal/httpapi/server.go
index 3791062..85c80d2 100644
--- a/backend/internal/httpapi/server.go
+++ b/backend/internal/httpapi/server.go
@@ -399,7 +399,6 @@ type serverRequest struct {
 	Address              string   `json:"address" binding:"required"`
 	Port                 int      `json:"port"`
 	Username             string   `json:"username" binding:"required"`
-	AuthMethod           string   `json:"auth_method"`
 	Password             string   `json:"password"`
 	HostKeyFingerprint   string   `json:"host_key_fingerprint" binding:"required"`
 	CertificatePath      string   `json:"certificate_path"`
diff --git a/frontend/src/views/Dashboard/Dashboard.js b/frontend/src/views/Dashboard/Dashboard.js
index a192492..215c024 100644
--- a/frontend/src/views/Dashboard/Dashboard.js
+++ b/frontend/src/views/Dashboard/Dashboard.js
@@ -518,7 +518,6 @@ export function useDashboard() {
         address: serverForm.value.address,
         port: Number(serverForm.value.port),
         username: serverForm.value.username,
-        auth_method: "password",
         host_key_fingerprint: serverForm.value.host_key_fingerprint,
         certificate_path: serverForm.value.certificate_path,
         private_key_path: serverForm.value.private_key_path,
diff --git a/frontend/src/views/Dashboard/Dashboard.test.js b/frontend/src/views/Dashboard/Dashboard.test.js
index fda2861..8bff4f9 100644
--- a/frontend/src/views/Dashboard/Dashboard.test.js
+++ b/frontend/src/views/Dashboard/Dashboard.test.js
@@ -328,8 +328,8 @@ test("部署服务器仅使用密码认证且不暴露私钥管理入口", async
   state.serverForm.value.host_key_fingerprint = "SHA256:test";
   await state.saveServer();
   const payload = JSON.parse(requests.at(-1).body);
-  assert.equal(payload.auth_method, "password");
   assert.equal(payload.password, "test-password");
+  assert.equal("auth_method" in payload, false);
   assert.equal("private_key_ref" in payload, false);
 });