diff --git a/homeassistant/components/knx/number.py b/homeassistant/components/knx/number.py
index eb4f21de513..d1ef2d226b4 100644
--- a/homeassistant/components/knx/number.py
+++ b/homeassistant/components/knx/number.py
@@ -7,7 +7,13 @@ from xknx import XKNX
 from xknx.devices import NumericValue
 
 from homeassistant.components.number import NumberEntity
-from homeassistant.const import CONF_NAME, CONF_TYPE, STATE_UNAVAILABLE, STATE_UNKNOWN
+from homeassistant.const import (
+    CONF_MODE,
+    CONF_NAME,
+    CONF_TYPE,
+    STATE_UNAVAILABLE,
+    STATE_UNKNOWN,
+)
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.restore_state import RestoreEntity
@@ -63,6 +69,7 @@ class KNXNumber(KnxEntity, NumberEntity, RestoreEntity):
             NumberSchema.CONF_MIN,
             self._device.sensor_value.dpt_class.value_min,
         )
+        self._attr_mode = config[CONF_MODE]
         self._attr_step = config.get(
             NumberSchema.CONF_STEP,
             self._device.sensor_value.dpt_class.resolution,
diff --git a/homeassistant/components/knx/schema.py b/homeassistant/components/knx/schema.py
index 89dab40958c..653084f3e3a 100644
--- a/homeassistant/components/knx/schema.py
+++ b/homeassistant/components/knx/schema.py
@@ -3,7 +3,7 @@ from __future__ import annotations
 
 from abc import ABC
 from collections import OrderedDict
-from typing import Any, ClassVar
+from typing import Any, ClassVar, Final
 
 import voluptuous as vol
 from xknx import XKNX
@@ -18,11 +18,13 @@ from homeassistant.components.binary_sensor import (
 )
 from homeassistant.components.climate.const import HVAC_MODE_HEAT, HVAC_MODES
 from homeassistant.components.cover import DEVICE_CLASSES as COVER_DEVICE_CLASSES
+from homeassistant.components.number.const import MODE_AUTO, MODE_BOX, MODE_SLIDER
 from homeassistant.components.sensor import CONF_STATE_CLASS, STATE_CLASSES_SCHEMA
 from homeassistant.const import (
     CONF_DEVICE_CLASS,
     CONF_ENTITY_ID,
     CONF_HOST,
+    CONF_MODE,
     CONF_NAME,
     CONF_PORT,
     CONF_TYPE,
@@ -437,7 +439,7 @@ class ExposeSchema(KNXPlatformSchema):
     CONF_KNX_EXPOSE_ATTRIBUTE = "attribute"
     CONF_KNX_EXPOSE_BINARY = "binary"
     CONF_KNX_EXPOSE_DEFAULT = "default"
-    EXPOSE_TIME_TYPES = [
+    EXPOSE_TIME_TYPES: Final = [
         "time",
         "date",
         "datetime",
@@ -653,11 +655,14 @@ class NumberSchema(KNXPlatformSchema):
     CONF_STEP = "step"
     DEFAULT_NAME = "KNX Number"
 
+    NUMBER_MODES: Final = [MODE_AUTO, MODE_BOX, MODE_SLIDER]
+
     ENTITY_SCHEMA = vol.All(
         vol.Schema(
             {
                 vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
                 vol.Optional(CONF_RESPOND_TO_READ, default=False): cv.boolean,
+                vol.Optional(CONF_MODE, default=MODE_AUTO): vol.In(NUMBER_MODES),
                 vol.Required(CONF_TYPE): numeric_type_validator,
                 vol.Required(KNX_ADDRESS): ga_list_validator,
                 vol.Optional(CONF_STATE_ADDRESS): ga_list_validator,