diff --git a/fconv/__init__.py b/fconv/__init__.py
index 4d73488..f8ff974 100644
--- a/fconv/__init__.py
+++ b/fconv/__init__.py
@@ -29,4 +29,10 @@
     "yaml_explicit_start": "add explicit start marker(See also https://yaml.org/spec/1.2.2/#914-explicit-documents)",
     "yaml_explicit_end": "add explicit end marker(See also https://yaml.org/spec/1.2.2/#914-explicit-documents)",
     "yaml_indent": "YAML array elements and object members will be pretty-printed with that indent level. ",
+    # xml input
+    "xml_process_namespaces": "enable namespace support(See more info at https://github.com/martinblech/xmltodict#namespace-support)",
+    "xml_process_comments": "treat comments directives as an attribute",
+    # xml output
+    "xml_particle_document": "disable to add document root attribute",
+    "xml_disable_pretty": "disable XML document to be pretty-printed with indent",
 }
diff --git a/fconv/__main__.py b/fconv/__main__.py
index cc8028a..5e337f2 100644
--- a/fconv/__main__.py
+++ b/fconv/__main__.py
@@ -58,6 +58,26 @@ def _set_opts() -> Namespace:
     )
     p.add_argument("--yaml-indent", help=HELP["yaml_indent"], type=int)
 
+    # xml intput
+    p.add_argument(
+        "--xml-process-namespaces",
+        help=HELP["xml_process_namespaces"],
+        action="store_true",
+    )
+    p.add_argument(
+        "--xml-process-comments", help=HELP["xml_process_comments"], action="store_true"
+    )
+
+    # xml output
+    p.add_argument(
+        "--xml-particle-document",
+        help=HELP["xml_particle_document"],
+        action="store_true",
+    )
+    p.add_argument(
+        "--xml-disable-pretty", help=HELP["xml_disable_pretty"], action="store_true"
+    )
+
     a = p.parse_args()
     return a
 
@@ -104,6 +124,16 @@ def parse_args(a):
         out_opt["explicit_end"] = True
     if a.yaml_indent is not None:
         out_opt["indent"] = a.yaml_indent
+    # xml input
+    if a.xml_process_namespaces:
+        out_opt["process_namespaces"] = True
+    if a.xml_process_comments:
+        out_opt["process_comments"] = True
+    # xml output
+    if a.xml_particle_document:
+        out_opt["full_document"] = False
+    if a.xml_disable_pretty:
+        out_opt["pretty"] = False
     return in_opt, out_opt
 
 
diff --git a/tests/test_cli.py b/tests/test_cli.py
index d18338d..1ce28f8 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -6,7 +6,11 @@
 from fconv import __prog__
 from fconv.__main__ import main
 
-from .fixtures import JSON_FILE_PATH, TOML_FILE_PATH, YAML_FILE_PATH
+# fmt: off
+from .fixtures import (JSON_FILE_PATH, TOML_FILE_PATH, XML_FILE_PATH,
+                       YAML_FILE_PATH)
+
+# fmt: on
 
 
 @pytest.mark.parametrize(
@@ -212,6 +216,51 @@ def test_cli_json_opt_callable(self, mocker, argv, expect_opt):
                 [__prog__, "json", "yaml", "-i", JSON_FILE_PATH, "--yaml-indent", "1"],
                 {"indent": 1},
             ),
+            # XML input opt
+            (
+                [
+                    __prog__,
+                    "xml",
+                    "yaml",
+                    "-i",
+                    XML_FILE_PATH,
+                    "--xml-process-namespaces",
+                ],
+                {"process_namespaces": True},
+            ),
+            (
+                [
+                    __prog__,
+                    "xml",
+                    "yaml",
+                    "-i",
+                    XML_FILE_PATH,
+                    "--xml-process-comments",
+                ],
+                {"process_comments": True},
+            ),
+            (
+                [
+                    __prog__,
+                    "json",
+                    "xml",
+                    "-i",
+                    JSON_FILE_PATH,
+                    "--xml-particle-document",
+                ],
+                {"full_document": False},
+            ),
+            (
+                [
+                    __prog__,
+                    "json",
+                    "xml",
+                    "-i",
+                    JSON_FILE_PATH,
+                    "--xml-disable-pretty",
+                ],
+                {"pretty": False},
+            ),
         ],
     )
     @pytest.mark.this