diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6ae5e08..9d5651b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -265,6 +265,7 @@ set(CFLAGS_COMMON
     -Wextra
     -Werror
     "-I${CMAKE_SOURCE_DIR}/clks/include"
+    "-I${CMAKE_SOURCE_DIR}/common/include"
 )
 
 set(CXXFLAGS_COMMON
@@ -281,6 +282,7 @@ set(CXXFLAGS_COMMON
     -Wextra
     -Werror
     "-I${CMAKE_SOURCE_DIR}/clks/include"
+    "-I${CMAKE_SOURCE_DIR}/common/include"
 )
 
 set(ARCH_CFLAGS
@@ -357,6 +359,7 @@ set(USER_CFLAGS
     -Wextra
     -Werror
     "-I${CMAKE_SOURCE_DIR}/cleonos/c/include"
+    "-I${CMAKE_SOURCE_DIR}/common/include"
 )
 
 set(USER_CFLAGS_DOOM
@@ -372,6 +375,7 @@ set(USER_CFLAGS_DOOM
     -Wno-sign-compare
     -D_DEFAULT_SOURCE
     -D_POSIX_C_SOURCE=200809L
+    "-I${CMAKE_SOURCE_DIR}/common/include"
     "-I${CMAKE_SOURCE_DIR}/cleonos/third-party/doomgeneric/doomgeneric"
     "-include"
     "${CMAKE_SOURCE_DIR}/cleonos/c/apps/doom/doom_shim.h"
diff --git a/cleonos/c/apps/fastfetch_main.c b/cleonos/c/apps/fastfetch_main.c
index 9db73d2..43d8b5b 100644
--- a/cleonos/c/apps/fastfetch_main.c
+++ b/cleonos/c/apps/fastfetch_main.c
@@ -1,4 +1,5 @@
 #include "cmd_runtime.h"
+#include <cleonos_version.h>
 static u64 ush_fastfetch_u64_to_dec(char *out, u64 out_size, u64 value) {
     char rev[32];
     u64 digits = 0ULL;
@@ -115,6 +116,7 @@ static int ush_cmd_fastfetch(const char *arg) {
     u64 tty_count;
     u64 exec_req;
     u64 exec_ok;
+    char kernel_version[32];
 
     if (arg != (const char *)0 && arg[0] != '\0') {
         if (ush_streq(arg, "--plain") != 0) {
@@ -132,12 +134,17 @@ static int ush_cmd_fastfetch(const char *arg) {
     tty_count = cleonos_sys_tty_count();
     exec_req = cleonos_sys_exec_request_count();
     exec_ok = cleonos_sys_exec_success_count();
+    if (cleonos_sys_kernel_version(kernel_version, (u64)sizeof(kernel_version)) == 0ULL) {
+        ush_copy(kernel_version, (u64)sizeof(kernel_version), "unknown");
+    }
 
     ush_fastfetch_print_logo(plain);
     ush_write_char('\n');
 
     ush_fastfetch_print_text(plain, "OS", "CLeonOS x86_64");
     ush_fastfetch_print_text(plain, "Shell", "User Shell (/shell/shell.elf)");
+    ush_fastfetch_print_text(plain, "CLeonOSVersion", CLEONOS_VERSION_STRING);
+    ush_fastfetch_print_text(plain, "CLKSVersion", kernel_version);
     ush_fastfetch_print_u64(plain, "PID", cleonos_sys_getpid());
     ush_fastfetch_print_u64(plain, "UptimeTicks", cleonos_sys_timer_ticks());
     ush_fastfetch_print_u64(plain, "Tasks", cleonos_sys_task_count());
diff --git a/cleonos/c/include/cleonos_syscall.h b/cleonos/c/include/cleonos_syscall.h
index 7d096d4..6c942e7 100644
--- a/cleonos/c/include/cleonos_syscall.h
+++ b/cleonos/c/include/cleonos_syscall.h
@@ -144,6 +144,7 @@ typedef struct cleonos_fb_blit_req {
 #define CLEONOS_SYSCALL_FB_INFO 81ULL
 #define CLEONOS_SYSCALL_FB_BLIT 82ULL
 #define CLEONOS_SYSCALL_FB_CLEAR 83ULL
+#define CLEONOS_SYSCALL_KERNEL_VERSION 84ULL
 
 u64 cleonos_syscall(u64 id, u64 arg0, u64 arg1, u64 arg2);
 u64 cleonos_sys_log_write(const char *message, u64 length);
@@ -230,5 +231,6 @@ u64 cleonos_sys_dl_sym(u64 handle, const char *symbol);
 u64 cleonos_sys_fb_info(cleonos_fb_info *out_info);
 u64 cleonos_sys_fb_blit(const cleonos_fb_blit_req *req);
 u64 cleonos_sys_fb_clear(u64 rgb);
+u64 cleonos_sys_kernel_version(char *out_version, u64 out_size);
 
 #endif
diff --git a/cleonos/c/src/syscall.c b/cleonos/c/src/syscall.c
index 1ea4ba1..3286323 100644
--- a/cleonos/c/src/syscall.c
+++ b/cleonos/c/src/syscall.c
@@ -367,3 +367,7 @@ u64 cleonos_sys_fb_blit(const cleonos_fb_blit_req *req) {
 u64 cleonos_sys_fb_clear(u64 rgb) {
     return cleonos_syscall(CLEONOS_SYSCALL_FB_CLEAR, rgb, 0ULL, 0ULL);
 }
+
+u64 cleonos_sys_kernel_version(char *out_version, u64 out_size) {
+    return cleonos_syscall(CLEONOS_SYSCALL_KERNEL_VERSION, (u64)out_version, out_size, 0ULL);
+}
diff --git a/clks/include/clks/syscall.h b/clks/include/clks/syscall.h
index a2869ce..8bfb8e4 100644
--- a/clks/include/clks/syscall.h
+++ b/clks/include/clks/syscall.h
@@ -87,6 +87,7 @@
 #define CLKS_SYSCALL_FB_INFO 81ULL
 #define CLKS_SYSCALL_FB_BLIT 82ULL
 #define CLKS_SYSCALL_FB_CLEAR 83ULL
+#define CLKS_SYSCALL_KERNEL_VERSION 84ULL
 
 void clks_syscall_init(void);
 u64 clks_syscall_dispatch(void *frame_ptr);
diff --git a/clks/kernel/runtime/syscall.c b/clks/kernel/runtime/syscall.c
index 901b434..cec03e9 100644
--- a/clks/kernel/runtime/syscall.c
+++ b/clks/kernel/runtime/syscall.c
@@ -16,6 +16,7 @@
 #include <clks/tty.h>
 #include <clks/types.h>
 #include <clks/userland.h>
+#include <cleonos_version.h>
 
 #define CLKS_SYSCALL_LOG_MAX_LEN 191U
 #define CLKS_SYSCALL_PATH_MAX 192U
@@ -33,7 +34,7 @@
 #define CLKS_SYSCALL_KDBG_STACK_WINDOW_BYTES (128ULL * 1024ULL)
 #define CLKS_SYSCALL_KERNEL_SYMBOL_FILE "/system/kernel.sym"
 #define CLKS_SYSCALL_KERNEL_ADDR_BASE 0xFFFF800000000000ULL
-#define CLKS_SYSCALL_STATS_MAX_ID CLKS_SYSCALL_FB_CLEAR
+#define CLKS_SYSCALL_STATS_MAX_ID CLKS_SYSCALL_KERNEL_VERSION
 #define CLKS_SYSCALL_STATS_RING_SIZE 256U
 #define CLKS_SYSCALL_USC_MAX_ALLOWED_APPS 64U
 
@@ -467,6 +468,11 @@ static u64 clks_syscall_fb_blit(u64 arg0) {
     return 1ULL;
 }
 
+static u64 clks_syscall_kernel_version(u64 arg0, u64 arg1) {
+    usize len = clks_strlen(CLKS_VERSION_STRING);
+    return clks_syscall_copy_text_to_user(arg0, arg1, CLKS_VERSION_STRING, len);
+}
+
 static u64 clks_syscall_fd_open(u64 arg0, u64 arg1, u64 arg2) {
     char path[CLKS_SYSCALL_PATH_MAX];
 
@@ -2513,6 +2519,8 @@ u64 clks_syscall_dispatch(void *frame_ptr) {
         return clks_syscall_fb_blit(frame->rbx);
     case CLKS_SYSCALL_FB_CLEAR:
         return clks_syscall_fb_clear(frame->rbx);
+    case CLKS_SYSCALL_KERNEL_VERSION:
+        return clks_syscall_kernel_version(frame->rbx, frame->rcx);
     default:
         return (u64)-1;
     }
diff --git a/common/include/cleonos_version.h b/common/include/cleonos_version.h
new file mode 100644
index 0000000..6186e5c
--- /dev/null
+++ b/common/include/cleonos_version.h
@@ -0,0 +1,7 @@
+#ifndef CLEONOS_VERSION_H
+#define CLEONOS_VERSION_H
+
+#define CLKS_VERSION_STRING "1.0.0-alpha"
+#define CLEONOS_VERSION_STRING "1.0.0-alpha"
+
+#endif
diff --git a/docs/syscall.md b/docs/syscall.md
index 32a1a85..786c54c 100644
--- a/docs/syscall.md
+++ b/docs/syscall.md
@@ -83,7 +83,7 @@ u64 cleonos_syscall(u64 id, u64 arg0, u64 arg1, u64 arg2);
 - `/proc/<pid>`：指定 PID 快照文本
 - `/proc` 为只读；写入类 syscall 不支持。
 
-## 4. Syscall 列表（0~83）
+## 4. Syscall 列表（0~84）
 
 ### 0 `CLEONOS_SYSCALL_LOG_WRITE`
 
@@ -659,6 +659,14 @@ u64 cleonos_syscall(u64 id, u64 arg0, u64 arg1, u64 arg2);
 - 返回：成功 `1`，失败 `0`
 - 说明：用纯色清屏。
 
+### 84 `CLEONOS_SYSCALL_KERNEL_VERSION`
+
+- 参数：
+- `arg0`: `char *out_version`
+- `arg1`: `u64 out_size`
+- 返回：实际写入字节数（不含终止符），失败返回 `0`
+- 说明：返回 CLKS 内核版本字符串（当前默认 `1.0.0-alpha`），内核会保证输出以 `\0` 结尾。
+
 ## 5. 用户态封装函数
 
 用户态封装位于：
@@ -687,6 +695,7 @@ u64 cleonos_syscall(u64 id, u64 arg0, u64 arg1, u64 arg2);
 - `cleonos_sys_dl_open()` / `cleonos_sys_dl_close()` / `cleonos_sys_dl_sym()`
 - `cleonos_sys_exec_pathv_io()`
 - `cleonos_sys_fb_info()` / `cleonos_sys_fb_blit()` / `cleonos_sys_fb_clear()`
+- `cleonos_sys_kernel_version()`
 
 ## 6. 开发注意事项
 
@@ -697,7 +706,7 @@ u64 cleonos_syscall(u64 id, u64 arg0, u64 arg1, u64 arg2);
 
 ## 7. Wine 兼容说明
 
-- `wine/cleonos_wine_lib/runner.py` 当前已覆盖到 `0..83`（含 `DL_*`、`FB_*`）。
+- `wine/cleonos_wine_lib/runner.py` 当前已覆盖到 `0..84`（含 `DL_*`、`FB_*`、`KERNEL_VERSION`）。
 - `DL_*`（`77..79`）在 Wine 中为“可运行兼容”实现：
 - `DL_OPEN`：加载 guest ELF 到当前 Unicorn 地址空间，返回稳定 `handle`，并做引用计数。
 - `DL_SYM`：解析 ELF `SYMTAB/DYNSYM` 并返回 guest 可调用地址。
@@ -708,5 +717,7 @@ u64 cleonos_syscall(u64 id, u64 arg0, u64 arg1, u64 arg2);
 - `FB_BLIT` 实现内核同类参数校验并支持 `scale>=1` 绘制。
 - 配合 Wine 参数 `--fb-window` 可将 framebuffer 实时显示到主机窗口（pygame 后端）；未启用时保持内存缓冲模式。
 - `FB_CLEAR` 支持清屏颜色写入。
+- `KERNEL_VERSION`（`84`）在 Wine 中返回内核版本字符串（当前默认 `1.0.0-alpha`）。
 - Wine 在运行时崩溃场景下会生成与内核一致格式的“信号编码退出状态”，可通过 `WAITPID` 读取。
 - Wine 当前音频 syscall 为占位实现：`AUDIO_AVAILABLE=0`，`AUDIO_PLAY_TONE=0`，`AUDIO_STOP=1`。
+- Wine 版本号策略固定为 `85.0.0-wine`（`85` = 当前实现 syscall 数量，后续保持不变）。
diff --git a/wine/README.md b/wine/README.md
index 4f51dc8..2075c7d 100644
--- a/wine/README.md
+++ b/wine/README.md
@@ -38,7 +38,7 @@ python wine/cleonos_wine.py build/x86_64/ramdisk_root/shell/shell.elf --rootfs b
 ## 支持
 
 - ELF64 (x86_64) PT_LOAD 段装载
-- CLeonOS `int 0x80` syscall 0..83（含 `FD_*`、`DL_*`、`FB_*`、`PROC_*`、`STATS_*`、`EXEC_PATHV_IO`）
+- CLeonOS `int 0x80` syscall 0..84（含 `FD_*`、`DL_*`、`FB_*`、`PROC_*`、`STATS_*`、`EXEC_PATHV_IO`、`KERNEL_VERSION`）
 - TTY 输出与键盘输入队列
 - rootfs 文件/目录访问（`FS_*`）
 - `/temp` 写入限制（`FS_MKDIR/WRITE/APPEND/REMOVE`）
@@ -51,8 +51,14 @@ python wine/cleonos_wine.py build/x86_64/ramdisk_root/shell/shell.elf --rootfs b
 - 文件描述符（`FD_OPEN/FD_READ/FD_WRITE/FD_CLOSE/FD_DUP`）
 - 动态库兼容加载（`DL_OPEN/DL_CLOSE/DL_SYM`，基于 ELF 符号解析）
 - framebuffer 兼容（`FB_INFO/FB_BLIT/FB_CLEAR`，支持内存缓冲与窗口显示）
+- 内核版本查询（`KERNEL_VERSION`）
 - 异常退出状态编码与故障元信息（`PROC_LAST_SIGNAL/PROC_FAULT_*`）
 
+## 版本策略
+
+- CLeonOS-Wine 版本号固定为：`85.0.0-wine`
+- 该值来源于“当前实现 syscall 数量 = 85（0..84）”，按项目约定后续不再变更
+
 ## 参数
 
 - `--no-kbd`：关闭输入线程
diff --git a/wine/cleonos_wine_lib/__pycache__/constants.cpython-313.pyc b/wine/cleonos_wine_lib/__pycache__/constants.cpython-313.pyc
index 350f806..a8f38d4 100644
Binary files a/wine/cleonos_wine_lib/__pycache__/constants.cpython-313.pyc and b/wine/cleonos_wine_lib/__pycache__/constants.cpython-313.pyc differ
diff --git a/wine/cleonos_wine_lib/__pycache__/runner.cpython-313.pyc b/wine/cleonos_wine_lib/__pycache__/runner.cpython-313.pyc
index 8ef94a4..16ac5d4 100644
Binary files a/wine/cleonos_wine_lib/__pycache__/runner.cpython-313.pyc and b/wine/cleonos_wine_lib/__pycache__/runner.cpython-313.pyc differ
diff --git a/wine/cleonos_wine_lib/constants.py b/wine/cleonos_wine_lib/constants.py
index 5c5be38..9053c76 100644
--- a/wine/cleonos_wine_lib/constants.py
+++ b/wine/cleonos_wine_lib/constants.py
@@ -7,6 +7,12 @@ MAX_IO_READ = 1 << 20
 DEFAULT_MAX_EXEC_DEPTH = 6
 FS_NAME_MAX = 96
 
+CLKS_VERSION_STRING = "1.0.0-alpha"
+CLEONOS_VERSION_STRING = "1.0.0-alpha"
+WINE_IMPLEMENTED_SYSCALL_COUNT = 85
+# Frozen policy: this version string must not change in future updates.
+CLEONOS_WINE_VERSION_STRING = "85.0.0-wine"
+
 # CLeonOS syscall IDs from cleonos/c/include/cleonos_syscall.h
 SYS_LOG_WRITE = 0
 SYS_TIMER_TICKS = 1
@@ -92,6 +98,7 @@ SYS_EXEC_PATHV_IO = 80
 SYS_FB_INFO = 81
 SYS_FB_BLIT = 82
 SYS_FB_CLEAR = 83
+SYS_KERNEL_VERSION = 84
 
 # proc states (from cleonos/c/include/cleonos_syscall.h)
 PROC_STATE_UNUSED = 0
diff --git a/wine/cleonos_wine_lib/runner.py b/wine/cleonos_wine_lib/runner.py
index cffb1de..334e2f7 100644
--- a/wine/cleonos_wine_lib/runner.py
+++ b/wine/cleonos_wine_lib/runner.py
@@ -9,6 +9,7 @@ from pathlib import Path
 from typing import Dict, List, Optional, Tuple
 
 from .constants import (
+    CLKS_VERSION_STRING,
     DEFAULT_MAX_EXEC_DEPTH,
     FD_INHERIT,
     FS_NAME_MAX,
@@ -62,6 +63,7 @@ from .constants import (
     SYS_FS_STAT_TYPE,
     SYS_FS_WRITE,
     SYS_GETPID,
+    SYS_KERNEL_VERSION,
     SYS_KBD_BUFFERED,
     SYS_KBD_DROPPED,
     SYS_KBD_GET_CHAR,
@@ -713,6 +715,8 @@ class CLeonOSWineNative:
             return self._fb_blit(uc, arg0)
         if sid == SYS_FB_CLEAR:
             return self._fb_clear(arg0)
+        if sid == SYS_KERNEL_VERSION:
+            return self._kernel_version(uc, arg0, arg1)
 
         return u64_neg1()
 
@@ -1889,6 +1893,23 @@ class CLeonOSWineNative:
 
         return int(u64(addr)) if addr is not None else 0
 
+    def _kernel_version(self, uc: Uc, out_ptr: int, out_size: int) -> int:
+        if out_ptr == 0 or out_size <= 0:
+            return 0
+
+        max_copy = int(out_size) - 1
+        if max_copy < 0:
+            return 0
+
+        payload = CLKS_VERSION_STRING.encode("utf-8", errors="replace")
+        if len(payload) > max_copy:
+            payload = payload[:max_copy]
+
+        if not self._write_guest_bytes(uc, int(out_ptr), payload + b"\x00"):
+            return 0
+
+        return len(payload)
+
     def _fb_info(self, uc: Uc, out_ptr: int) -> int:
         if out_ptr == 0:
             return 0