diff --git a/homeassistant/components/homekit/type_switches.py b/homeassistant/components/homekit/type_switches.py
index 288da65a4af..75a9a31bee1 100644
--- a/homeassistant/components/homekit/type_switches.py
+++ b/homeassistant/components/homekit/type_switches.py
@@ -4,10 +4,12 @@ import logging
 from pyhap.const import (
     CATEGORY_OUTLET, CATEGORY_SWITCH)
 
+from homeassistant.components.script import ATTR_CAN_CANCEL
 from homeassistant.components.switch import DOMAIN
 from homeassistant.const import (
     ATTR_ENTITY_ID, CONF_TYPE, SERVICE_TURN_ON, SERVICE_TURN_OFF, STATE_ON)
 from homeassistant.core import split_entity_id
+from homeassistant.helpers.event import call_later
 
 from . import TYPES
 from .accessories import HomeAccessory
@@ -74,21 +76,48 @@ class Switch(HomeAccessory):
         self._domain = split_entity_id(self.entity_id)[0]
         self._flag_state = False
 
+        self.activate_only = self.is_activate(
+            self.hass.states.get(self.entity_id))
+
         serv_switch = self.add_preload_service(SERV_SWITCH)
         self.char_on = serv_switch.configure_char(
             CHAR_ON, value=False, setter_callback=self.set_state)
 
+    def is_activate(self, state):
+        """Check if entity is activate only."""
+        can_cancel = state.attributes.get(ATTR_CAN_CANCEL)
+        if self._domain == 'script' and not can_cancel:
+            return True
+        return False
+
+    def reset_switch(self, *args):
+        """Reset switch to emulate activate click."""
+        _LOGGER.debug('%s: Reset switch to off', self.entity_id)
+        self.char_on.set_value(0)
+
     def set_state(self, value):
         """Move switch state to value if call came from HomeKit."""
         _LOGGER.debug('%s: Set switch state to %s',
                       self.entity_id, value)
+        if self.activate_only and value == 0:
+            _LOGGER.debug('%s: Ignoring turn_off call', self.entity_id)
+            return
         self._flag_state = True
         params = {ATTR_ENTITY_ID: self.entity_id}
         service = SERVICE_TURN_ON if value else SERVICE_TURN_OFF
         self.call_service(self._domain, service, params)
 
+        if self.activate_only:
+            call_later(self.hass, 1, self.reset_switch)
+
     def update_state(self, new_state):
         """Update switch state after state changed."""
+        self.activate_only = self.is_activate(new_state)
+        if self.activate_only:
+            _LOGGER.debug('%s: Ignore state change, entity is activate only',
+                          self.entity_id)
+            return
+
         current_state = (new_state.state == STATE_ON)
         if not self._flag_state:
             _LOGGER.debug('%s: Set current state to %s',
diff --git a/tests/components/homekit/test_type_switches.py b/tests/components/homekit/test_type_switches.py
index d170647d492..c94929e560c 100644
--- a/tests/components/homekit/test_type_switches.py
+++ b/tests/components/homekit/test_type_switches.py
@@ -1,14 +1,18 @@
 """Test different accessory types: Switches."""
+from datetime import timedelta
+
 import pytest
 
 from homeassistant.components.homekit.const import (
     ATTR_VALUE, TYPE_FAUCET, TYPE_SHOWER, TYPE_SPRINKLER, TYPE_VALVE)
 from homeassistant.components.homekit.type_switches import (
     Outlet, Switch, Valve)
+from homeassistant.components.script import ATTR_CAN_CANCEL
 from homeassistant.const import ATTR_ENTITY_ID, CONF_TYPE, STATE_OFF, STATE_ON
 from homeassistant.core import split_entity_id
+import homeassistant.util.dt as dt_util
 
-from tests.common import async_mock_service
+from tests.common import async_fire_time_changed, async_mock_service
 
 
 async def test_outlet_set_state(hass, hk_driver, events):
@@ -54,18 +58,18 @@ async def test_outlet_set_state(hass, hk_driver, events):
     assert events[-1].data[ATTR_VALUE] is None
 
 
-@pytest.mark.parametrize('entity_id', [
-    'automation.test',
-    'input_boolean.test',
-    'remote.test',
-    'script.test',
-    'switch.test',
+@pytest.mark.parametrize('entity_id, attrs', [
+    ('automation.test', {}),
+    ('input_boolean.test', {}),
+    ('remote.test', {}),
+    ('script.test', {ATTR_CAN_CANCEL: True}),
+    ('switch.test', {}),
 ])
-async def test_switch_set_state(hass, hk_driver, entity_id, events):
+async def test_switch_set_state(hass, hk_driver, entity_id, attrs, events):
     """Test if accessory and HA are updated accordingly."""
     domain = split_entity_id(entity_id)[0]
 
-    hass.states.async_set(entity_id, None)
+    hass.states.async_set(entity_id, None, attrs)
     await hass.async_block_till_done()
     acc = Switch(hass, hk_driver, 'Switch', entity_id, 2, None)
     await hass.async_add_job(acc.run)
@@ -74,13 +78,14 @@ async def test_switch_set_state(hass, hk_driver, entity_id, events):
     assert acc.aid == 2
     assert acc.category == 8  # Switch
 
+    assert acc.activate_only is False
     assert acc.char_on.value is False
 
-    hass.states.async_set(entity_id, STATE_ON)
+    hass.states.async_set(entity_id, STATE_ON, attrs)
     await hass.async_block_till_done()
     assert acc.char_on.value is True
 
-    hass.states.async_set(entity_id, STATE_OFF)
+    hass.states.async_set(entity_id, STATE_OFF, attrs)
     await hass.async_block_till_done()
     assert acc.char_on.value is False
 
@@ -172,3 +177,65 @@ async def test_valve_set_state(hass, hk_driver, events):
     assert call_turn_off[0].data[ATTR_ENTITY_ID] == entity_id
     assert len(events) == 2
     assert events[-1].data[ATTR_VALUE] is None
+
+
+@pytest.mark.parametrize('entity_id, attrs', [
+    ('script.test', {}),
+    ('script.test', {ATTR_CAN_CANCEL: False}),
+])
+async def test_reset_switch(hass, hk_driver, entity_id, attrs, events):
+    """Test if switch accessory is reset correctly."""
+    domain = split_entity_id(entity_id)[0]
+
+    hass.states.async_set(entity_id, None, attrs)
+    await hass.async_block_till_done()
+    acc = Switch(hass, hk_driver, 'Switch', entity_id, 2, None)
+    await hass.async_add_job(acc.run)
+    await hass.async_block_till_done()
+
+    assert acc.activate_only is True
+    assert acc.char_on.value is False
+
+    call_turn_on = async_mock_service(hass, domain, 'turn_on')
+    call_turn_off = async_mock_service(hass, domain, 'turn_off')
+
+    await hass.async_add_job(acc.char_on.client_update_value, True)
+    await hass.async_block_till_done()
+    assert acc.char_on.value is True
+    assert call_turn_on
+    assert call_turn_on[0].data[ATTR_ENTITY_ID] == entity_id
+    assert len(events) == 1
+    assert events[-1].data[ATTR_VALUE] is None
+
+    future = dt_util.utcnow() + timedelta(seconds=1)
+    async_fire_time_changed(hass, future)
+    await hass.async_block_till_done()
+    assert acc.char_on.value is False
+    assert len(events) == 1
+    assert not call_turn_off
+
+    await hass.async_add_job(acc.char_on.client_update_value, False)
+    await hass.async_block_till_done()
+    assert acc.char_on.value is False
+    assert len(events) == 1
+
+
+async def test_reset_switch_reload(hass, hk_driver, events):
+    """Test reset switch after script reload."""
+    entity_id = 'script.test'
+
+    hass.states.async_set(entity_id, None)
+    await hass.async_block_till_done()
+    acc = Switch(hass, hk_driver, 'Switch', entity_id, 2, None)
+    await hass.async_add_job(acc.run)
+    await hass.async_block_till_done()
+
+    assert acc.activate_only is True
+
+    hass.states.async_set(entity_id, None, {ATTR_CAN_CANCEL: True})
+    await hass.async_block_till_done()
+    assert acc.activate_only is False
+
+    hass.states.async_set(entity_id, None, {ATTR_CAN_CANCEL: False})
+    await hass.async_block_till_done()
+    assert acc.activate_only is True