diff --git a/multimodalinput/kits/c/BUILD.gn b/multimodalinput/kits/c/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..60f919ab132fe57ba9c3cdaf305e7f899264baff
--- /dev/null
+++ b/multimodalinput/kits/c/BUILD.gn
@@ -0,0 +1,35 @@
+# Copyright (C) 2024 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import("//build/ohos.gni")
+import("//build/ohos/ndk/ndk.gni")
+import("//foundation/multimodalinput/input/multimodalinput_mini.gni")
+
+ohos_ndk_headers("ohinput_header") {
+  dest_dir = "$ndk_headers_out_dir/multimodalinput"
+  sources = [
+    "./input/oh_input_manager.h",
+    "./input/oh_key_code.h",
+  ]
+}
+
+ohos_ndk_library("libohinput_ndk") {
+  output_name = "ohinput"
+  output_extension = "so"
+  ndk_description_file = "./ohinput.ndk.json"
+  system_capability = "SystemCapability.MultimodalInput.Input.Core"
+  system_capability_headers = [
+    "multimodalinput/oh_input_manager.h",
+    "multimodalinput/oh_key_code.h",
+  ]
+}
diff --git a/multimodalinput/kits/c/input/oh_input_manager.h b/multimodalinput/kits/c/input/oh_input_manager.h
new file mode 100644
index 0000000000000000000000000000000000000000..7d02e48a13a8aa3d7c3b540c7a2fb0eeacc00d2c
--- /dev/null
+++ b/multimodalinput/kits/c/input/oh_input_manager.h
@@ -0,0 +1,182 @@
+/*
+ * Copyright (c) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef OH_INPUT_MANAGER_H
+#define OH_INPUT_MANAGER_H
+
+/**
+ * @addtogroup input
+ * @{
+ *
+ * @brief Provides the C interface in the multi-modal input domain.
+ *
+ * @since 12
+ */
+
+/**
+ * @file oh_input_manager.h
+ *
+ * @brief Provides capabilities such as event injection and key status query.
+ *
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @library liboh_input.so
+ * @since 12
+ */
+
+#include <stdint.h>
+
+#include "oh_key_code.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Enumerated values of key event action.
+ *
+ * @since 12
+ */
+enum Input_KeyStateAction {
+    /** Default */
+    KEY_DEFAULT = -1,
+    /** Pressing of a key */
+    KEY_PRESSED = 0,
+    /** Release of a key */
+    KEY_RELEASED = 1,
+    /** Key switch enabled */
+    KEY_SWITCH_ON = 2,
+    /** Key switch disabled */
+    KEY_SWITCH_OFF = 3
+};
+
+/**
+ * @brief Defines key information, which identifies a key pressing behavior. For example, the Ctrl key information contains the key value and key type.
+ *
+ * @since 12
+ */
+struct Input_KeyState;
+
+/**
+ * @brief Enumerates the error codes.
+ *
+ * @since 12
+ */
+typedef enum {
+    /** Success */
+    INPUT_SUCCESS = 0,
+    /** Permission verification failed */
+    INPUT_PERMISSION_DENIED = 201,
+    /** Non-system application */
+    INPUT_NOT_SYSTEM_APPLICATION = 202,
+    /** Parameter check failed */
+    INPUT_PARAMETER_ERROR = 401
+} Input_Result;
+
+/**
+ * @brief Queries the key state.
+ *
+ * @param keyState Key state.
+ * @HTTP4O4 Returns {@Link Input_Result#INPUT_SUCCESS} if the operation is successful;
+ * returns an error code defined in {@Link Input_Result} otherwise.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+Input_Result OH_Input_GetKeyState(struct Input_KeyState* keyState);
+
+/**
+ * @brief Creates a key status enumeration object.
+ *
+ * @return Returns an {@link Input_KeyState} pointer object if the operation is successful.
+ * returns a null pointer otherwise.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+struct Input_KeyState* OH_Input_CreateKeyState();
+
+/**
+ * @brief Destroys a key status enumeration object.
+ * 
+ * @param keyState Key status enumeration object.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_DestroyKeyState(struct Input_KeyState* keyState);
+
+/**
+ * @brief Sets the key value of a key status enumeration object.
+ * 
+ * @param keyState Key status enumeration object.
+ * @param keyCode Key value of the key status enumeration object.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetKeyCode(struct Input_KeyState* keyState, int32_t keyCode);
+
+/**
+ * @brief Obtains the key value of a key status enumeration object.
+ * 
+ * @param keyState Key status enumeration object.
+ * @return Key value of the key status enumeration object.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+int32_t OH_Input_GetKeyCode(struct Input_KeyState* keyState);
+
+/**
+ * @brief Sets whether the key specific to a key status enumeration object is pressed.
+ * 
+ * @param keyState Key status enumeration object.
+ * @param keyAction Whether the key is pressed.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetKeyPressed(struct Input_KeyState* keyState, int32_t keyAction);
+
+/**
+ * @brief Checks whether the key specific to a key status enumeration object is pressed.
+ * 
+ * @param keyState Key status enumeration object.
+ * @return Key pressing status of the key status enumeration object.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+int32_t OH_Input_GetKeyPressed(struct Input_KeyState* keyState);
+
+/**
+ * @brief Sets the key switch of the key status enumeration object.
+ * 
+ * @param keyState Key status enumeration object.
+ * @param keySwitch Key switch of the key status enumeration object.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetKeySwitch(struct Input_KeyState* keyState, int32_t keySwitch);
+
+/**
+ * @brief Obtains the key switch of the key status enumeration object.
+ * 
+ * @param keyState Key status enumeration object.
+ * @return Key switch of the key status enumeration object.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+int32_t OH_Input_GetKeySwitch(struct Input_KeyState* keyState);
+
+#ifdef __cplusplus
+}
+#endif
+/** @} */
+
+#endif /* OH_INPUT_MANAGER_H */
diff --git a/multimodalinput/kits/c/input/oh_key_code.h b/multimodalinput/kits/c/input/oh_key_code.h
new file mode 100644
index 0000000000000000000000000000000000000000..ca523bbf09fd60ddda38957fb9040ec65883c99d
--- /dev/null
+++ b/multimodalinput/kits/c/input/oh_key_code.h
@@ -0,0 +1,321 @@
+/*
+ * Copyright (c) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef OH_KEY_CODE_H
+#define OH_KEY_CODE_H
+
+/**
+ * @addtogroup input
+ * @{
+ *
+ * @brief Provides the C interface in the multi-modal input domain.
+ *
+ * @since 12
+ */
+
+/**
+ * @file oh_key_code.h
+ *
+ * @brief Defines the key event structure and related enumeration values.
+ *
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @library libohinput.so
+ * @since 12
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Enumerated values of OpenHarmony key code.
+ *
+ * @since 12
+ */
+typedef enum {
+    /** Unknown key */
+    KEYCODE_UNKNOWN = -1,
+    /** Function (Fn) key */
+    KEYCODE_FN = 0,
+    /** Volume Up key */
+    KEYCODE_VOLUME_UP = 16,
+    /** Volume Down button */
+    KEYCODE_VOLUME_DOWN = 17,
+    /** Power key */
+    KEYCODE_POWER = 18,
+    /** Shutter key */
+    KEYCODE_CAMERA = 19,
+    /** Speaker Mute key */
+    KEYCODE_VOLUME_MUTE = 22,
+    /** Mute key */
+    KEYCODE_MUTE = 23,
+    /** Brightness Up key */
+    KEYCODE_BRIGHTNESS_UP = 40,
+    /** Brightness Down key */
+    KEYCODE_BRIGHTNESS_DOWN = 41,
+    /** Key 0 */
+    KEYCODE_0 = 2000,
+    /** Key 1 */
+    KEYCODE_1 = 2001,
+    /** Key 2 */
+    KEYCODE_2 = 2002,
+    /** Key 3 */
+    KEYCODE_3 = 2003,
+    /** Key 4 */
+    KEYCODE_4 = 2004,
+    /** Key 5 */
+    KEYCODE_5 = 2005,
+    /** Key 6 */
+    KEYCODE_6 = 2006,
+    /** Key 7 */
+    KEYCODE_7 = 2007,
+    /** Key 8 */
+    KEYCODE_8 = 2008,
+    /** Key 9 */
+    KEYCODE_9 = 2009,
+    /** Key * */
+    KEYCODE_STAR = 2010,
+    /** Key # */
+    KEYCODE_POUND = 2011,
+     /** Up key on D-pad */
+    KEYCODE_DPAD_UP = 2012,
+    /** Down key on D-pad */
+    KEYCODE_DPAD_DOWN = 2013,
+    /** Left key on D-pad */
+    KEYCODE_DPAD_LEFT = 2014,
+    /** Right key on D-pad */
+    KEYCODE_DPAD_RIGHT = 2015,
+    /** OK key on D-pad */
+    KEYCODE_DPAD_CENTER = 2016,
+    /** Key A */
+    KEYCODE_A = 2017,
+    /** Key B */
+    KEYCODE_B = 2018,
+    /** Key C */
+    KEYCODE_C = 2019,
+    /** Key D */
+    KEYCODE_D = 2020,
+    /** Key E */
+    KEYCODE_E = 2021,
+    /** Key F */
+    KEYCODE_F = 2022,
+    /** Key G */
+    KEYCODE_G = 2023,
+    /** Key H */
+    KEYCODE_H = 2024,
+    /** Key I */
+    KEYCODE_I = 2025,
+    /** Key J */
+    KEYCODE_J = 2026,
+    /** Key K */
+    KEYCODE_K = 2027,
+    /** Key L */
+    KEYCODE_L = 2028,
+    /** Key M */
+    KEYCODE_M = 2029,
+    /** Key N */
+    KEYCODE_N = 2030,
+    /** Key O */
+    KEYCODE_O = 2031,
+    /** Key P */
+    KEYCODE_P = 2032,
+    /** Key Q */
+    KEYCODE_Q = 2033,
+    /** Key R */
+    KEYCODE_R = 2034,
+    /** Key S */
+    KEYCODE_S = 2035,
+    /** Key T */
+    KEYCODE_T = 2036,
+    /** Key U */
+    KEYCODE_U = 2037,
+    /** Key V */
+    KEYCODE_V = 2038,
+    /** Key W */
+    KEYCODE_W = 2039,
+    /** Key X */
+    KEYCODE_X = 2040,
+    /** Key Y */
+    KEYCODE_Y = 2041,
+    /** Key Z */
+    KEYCODE_Z = 2042,
+    /** Key , */
+    KEYCODE_COMMA = 2043,
+    /** Key . */
+    KEYCODE_PERIOD = 2044,
+    /** Left Alt key */
+    KEYCODE_ALT_LEFT = 2045,
+    /** Right Alt key */
+    KEYCODE_ALT_RIGHT = 2046,
+    /** Left Shift key */
+    KEYCODE_SHIFT_LEFT = 2047,
+    /** Right Shift key */
+    KEYCODE_SHIFT_RIGHT = 2048,
+    /** Tab key */
+    KEYCODE_TAB = 2049,
+    /** Space key */
+    KEYCODE_SPACE = 2050,
+    /** Symbol key */
+    KEYCODE_SYM = 2051,
+    /** Explorer key, used to start the explorer application */
+    KEYCODE_EXPLORER = 2052,
+    /** Email key, used to start the email application */
+    KEYCODE_ENVELOPE = 2053,
+    /** Enter key */
+    KEYCODE_ENTER = 2054,
+    /** Backspace key */
+    KEYCODE_DEL = 2055,
+    /** Key * */
+    KEYCODE_GRAVE = 2056,
+    /** Key - */
+    KEYCODE_MINUS = 2057,
+    /** Key = */
+    KEYCODE_EQUALS = 2058,
+    /** Key [ */
+    KEYCODE_LEFT_BRACKET = 2059,
+    /** Key ] */
+    KEYCODE_RIGHT_BRACKET = 2060,
+    /** Key \ */
+    KEYCODE_BACKSLASH = 2061,
+    /** Key ; */
+    KEYCODE_SEMICOLON = 2062,
+    /** Key ' */
+    KEYCODE_APOSTROPHE = 2063,
+    /** Key / */
+    KEYCODE_SLASH = 2064,
+    /** Key @ */
+    KEYCODE_AT = 2065,
+    /** Key + */
+    KEYCODE_PLUS = 2066,
+    /** Menu key */
+    KEYCODE_MENU = 2067,
+    /** Page Up key */
+    KEYCODE_PAGE_UP = 2068,
+    /** Page Down key */
+    KEYCODE_PAGE_DOWN = 2069,
+    /** ESC key */
+    KEYCODE_ESCAPE = 2070,
+    /** Delete key */
+    KEYCODE_FORWARD_DEL = 2071,
+    /** Left Ctrl key */
+    KEYCODE_CTRL_LEFT = 2072,
+    /** Right Ctrl key */
+    KEYCODE_CTRL_RIGHT = 2073,
+    /** Caps Lock key */
+    KEYCODE_CAPS_LOCK = 2074,
+    /** Scroll Lock key */
+    KEYCODE_SCROLL_LOCK = 2075,
+    /** Left Meta key */
+    KEYCODE_META_LEFT = 2076,
+    /** Right Meta key */
+    KEYCODE_META_RIGHT = 2077,
+    /** Function key */
+    KEYCODE_FUNCTION = 2078,
+    /** System Request/Print Screen key */
+    KEYCODE_SYSRQ = 2079,
+    /** Break/Pause key */
+    KEYCODE_BREAK = 2080,
+    /** Move to Home key */
+    KEYCODE_MOVE_HOME = 2081,
+    /** Move to End key */
+    KEYCODE_MOVE_END = 2082,
+    /** Insert key */
+    KEYCODE_INSERT = 2083,
+    /** Forward key */
+    KEYCODE_FORWARD = 2084,
+    /** Play key */
+    KEYCODE_MEDIA_PLAY = 2085,
+    /** Pause key */
+    KEYCODE_MEDIA_PAUSE = 2086,
+    /** Close key */
+    KEYCODE_MEDIA_CLOSE = 2087,
+    /** Eject key */
+    KEYCODE_MEDIA_EJECT = 2088,
+    /** Record key */
+    KEYCODE_MEDIA_RECORD = 2089,
+    /** F1 key */
+    KEYCODE_F1 = 2090,
+    /** F2 key */
+    KEYCODE_F2 = 2091,
+    /** F3 key */
+    KEYCODE_F3 = 2092,
+    /** F4 key */
+    KEYCODE_F4 = 2093,
+    /** F5 key */
+    KEYCODE_F5 = 2094,
+    /** F6 key */
+    KEYCODE_F6 = 2095,
+    /** F7 key */
+    KEYCODE_F7 = 2096,
+    /** F8 key */
+    KEYCODE_F8 = 2097,
+    /** F9 key */
+    KEYCODE_F9 = 2098,
+    /** F10 key */
+    KEYCODE_F10 = 2099,
+    /** F11 key */
+    KEYCODE_F11 = 2100,
+    /** F12 key */
+    KEYCODE_F12 = 2101,
+    /** Number Lock key on numeric keypad */
+    KEYCODE_NUM_LOCK = 2102,
+    /** Key 0 on numeric keypad */
+    KEYCODE_NUMPAD_0 = 2103,
+    /** Key 1 on numeric keypad */
+    KEYCODE_NUMPAD_1 = 2104,
+    /** Key 2 on numeric keypad */
+    KEYCODE_NUMPAD_2 = 2105,
+    /** Key 3 on numeric keypad */
+    KEYCODE_NUMPAD_3 = 2106,
+    /** Key 4 on numeric keypad */
+    KEYCODE_NUMPAD_4 = 2107,
+    /** Key 5 on numeric keypad */
+    KEYCODE_NUMPAD_5 = 2108,
+    /** Key 6 on numeric keypad */
+    KEYCODE_NUMPAD_6 = 2109,
+    /** Key 7 on numeric keypad */
+    KEYCODE_NUMPAD_7 = 2110,
+    /** Key 8 on numeric keypad */
+    KEYCODE_NUMPAD_8 = 2111,
+    /** Key 9 on numeric keypad */
+    KEYCODE_NUMPAD_9 = 2112,
+    /** Key / on numeric keypad */
+    KEYCODE_NUMPAD_DIVIDE = 2113,
+    /** Key * on numeric keypad */
+    KEYCODE_NUMPAD_MULTIPLY = 2114,
+    /** Key - on numeric keypad */
+    KEYCODE_NUMPAD_SUBTRACT = 2115,
+    /** Key + on numeric keypad */
+    KEYCODE_NUMPAD_ADD = 2116,
+    /** Key . on numeric keypad */
+    KEYCODE_NUMPAD_DOT = 2117,
+    /** Key , on numeric keypad */
+    KEYCODE_NUMPAD_COMMA = 2118,
+    /** Enter key on numeric keypad */
+    KEYCODE_NUMPAD_ENTER = 2119,
+    /** Key = on numeric keypad */
+    KEYCODE_NUMPAD_EQUALS = 2120,
+    /** Key ( on numeric keypad */
+    KEYCODE_NUMPAD_LEFT_PAREN = 2121,
+    /** Key ) on numeric keypad */
+    KEYCODE_NUMPAD_RIGHT_PAREN = 2122
+} Input_KeyCode;
+
+#ifdef __cplusplus
+}
+#endif
+/** @} */
+
+#endif /* OH_KEY_CODE_H */
diff --git a/multimodalinput/kits/c/ohinput.ndk.json b/multimodalinput/kits/c/ohinput.ndk.json
new file mode 100644
index 0000000000000000000000000000000000000000..137265940516a56ad1120c613e8bb2cf0e1f494a
--- /dev/null
+++ b/multimodalinput/kits/c/ohinput.ndk.json
@@ -0,0 +1,38 @@
+[
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetKeyState"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_CreateKeyState"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_DestroyKeyState"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetKeyCode"
+    },
+    { 
+        "first_introduced": "12",
+        "name": "OH_Input_GetKeyCode"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetKeyPressed"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetKeyPressed"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetKeySwitch"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetKeySwitch"
+    }
+]
\ No newline at end of file