diff --git a/homeassistant/components/script/__init__.py b/homeassistant/components/script/__init__.py
index 1af553165bd..c0d79c446bb 100644
--- a/homeassistant/components/script/__init__.py
+++ b/homeassistant/components/script/__init__.py
@@ -18,13 +18,11 @@ from homeassistant.const import (
     ATTR_MODE,
     ATTR_NAME,
     CONF_ALIAS,
-    CONF_DEFAULT,
     CONF_DESCRIPTION,
     CONF_ICON,
     CONF_MODE,
     CONF_NAME,
     CONF_PATH,
-    CONF_SELECTOR,
     CONF_SEQUENCE,
     CONF_VARIABLES,
     SERVICE_RELOAD,
@@ -60,7 +58,6 @@ from homeassistant.helpers.script import (
     ScriptRunResult,
     script_stack_cv,
 )
-from homeassistant.helpers.selector import selector
 from homeassistant.helpers.service import async_set_service_schema
 from homeassistant.helpers.trace import trace_get, trace_path
 from homeassistant.helpers.typing import ConfigType
@@ -74,7 +71,6 @@ from .const import (
     ATTR_LAST_TRIGGERED,
     ATTR_VARIABLES,
     CONF_FIELDS,
-    CONF_REQUIRED,
     CONF_TRACE,
     DOMAIN,
     ENTITY_ID_FORMAT,
@@ -734,40 +730,11 @@ class ScriptEntity(BaseScriptEntity, RestoreEntity):
 
         unique_id = self.unique_id
         hass = self.hass
-
-        service_schema = {}
-        for field_name, field_info in self.fields.items():
-            key_cls = vol.Required if field_info[CONF_REQUIRED] else vol.Optional
-            key_kwargs = {}
-            if CONF_DEFAULT in field_info:
-                key_kwargs["default"] = field_info[CONF_DEFAULT]
-
-            if CONF_SELECTOR in field_info:
-                validator: Any = selector(field_info[CONF_SELECTOR])
-
-                # Default values need to match the validator.
-                # When they don't match, we will not enforce validation
-                if CONF_DEFAULT in field_info:
-                    try:
-                        validator(field_info[CONF_DEFAULT])
-                    except vol.Invalid:
-                        logging.getLogger(f"{__name__}.{self._attr_unique_id}").warning(
-                            "Field %s has invalid default value %s",
-                            field_name,
-                            field_info[CONF_DEFAULT],
-                        )
-                        validator = cv.match_all
-
-            else:
-                validator = cv.match_all
-
-            service_schema[key_cls(field_name, **key_kwargs)] = validator
-
         hass.services.async_register(
             DOMAIN,
             unique_id,
             self._service_handler,
-            schema=vol.Schema(service_schema, extra=vol.ALLOW_EXTRA),
+            schema=SCRIPT_SERVICE_SCHEMA,
             supports_response=SupportsResponse.OPTIONAL,
         )
 
diff --git a/tests/components/script/test_init.py b/tests/components/script/test_init.py
index 96ac73438ea..a5eda3757a9 100644
--- a/tests/components/script/test_init.py
+++ b/tests/components/script/test_init.py
@@ -6,7 +6,6 @@ from typing import Any
 from unittest.mock import ANY, Mock, patch
 
 import pytest
-import voluptuous as vol
 
 from homeassistant.components import script
 from homeassistant.components.script import DOMAIN, EVENT_SCRIPT_STARTED, ScriptEntity
@@ -49,7 +48,6 @@ import homeassistant.util.dt as dt_util
 from tests.common import (
     MockConfigEntry,
     MockUser,
-    async_capture_events,
     async_fire_time_changed,
     async_mock_service,
     mock_restore_cache,
@@ -559,101 +557,6 @@ async def test_reload_unchanged_script(
         assert len(calls) == 2
 
 
-async def test_service_schema(
-    hass: HomeAssistant, caplog: pytest.LogCaptureFixture
-) -> None:
-    """Test that service schema are defined correctly."""
-    events = async_capture_events(hass, "test_event")
-
-    assert await async_setup_component(
-        hass,
-        "script",
-        {
-            "script": {
-                "test": {
-                    "fields": {
-                        "param_with_default": {
-                            "default": "default_value",
-                        },
-                        "required_param": {
-                            "required": True,
-                        },
-                        "selector_param": {
-                            "selector": {
-                                "select": {
-                                    "options": [
-                                        "one",
-                                        "two",
-                                    ]
-                                }
-                            }
-                        },
-                        "invalid_default": {
-                            "default": "invalid-value",
-                            "selector": {"number": {"min": 0, "max": 2}},
-                        },
-                    },
-                    "sequence": [
-                        {
-                            "event": "test_event",
-                            "event_data": {
-                                "param_with_default": "{{ param_with_default }}",
-                                "required_param": "{{ required_param }}",
-                                "selector_param": "{{ selector_param | default('not_set') }}",
-                                "invalid_default": "{{ invalid_default }}",
-                            },
-                        }
-                    ],
-                }
-            }
-        },
-    )
-
-    assert (
-        "Field invalid_default has invalid default value invalid-value" in caplog.text
-    )
-
-    await hass.services.async_call(
-        DOMAIN,
-        "test",
-        {"required_param": "required_value"},
-        blocking=True,
-    )
-    assert len(events) == 1
-    assert events[0].data["param_with_default"] == "default_value"
-    assert events[0].data["required_param"] == "required_value"
-    assert events[0].data["selector_param"] == "not_set"
-    assert events[0].data["invalid_default"] == "invalid-value"
-
-    with pytest.raises(vol.Invalid):
-        await hass.services.async_call(
-            DOMAIN,
-            "test",
-            {
-                "required_param": "required_value",
-                "selector_param": "invalid_value",
-            },
-            blocking=True,
-        )
-
-    await hass.services.async_call(
-        DOMAIN,
-        "test",
-        {
-            "param_with_default": "service_set_value",
-            "required_param": "required_value",
-            "selector_param": "one",
-            "invalid_default": "another-value",
-        },
-        blocking=True,
-    )
-    assert len(events) == 2
-    assert events[1].data["param_with_default"] == "service_set_value"
-    assert events[1].data["required_param"] == "required_value"
-    assert events[1].data["selector_param"] == "one"
-    assert events[1].data["invalid_default"] == "another-value"
-
-
 async def test_service_descriptions(hass: HomeAssistant) -> None:
     """Test that service descriptions are loaded and reloaded correctly."""
     # Test 1: has "description" but no "fields"