diff --git a/astrbot/core/platform/sources/discord/discord_platform_adapter.py b/astrbot/core/platform/sources/discord/discord_platform_adapter.py
index 4c0b8eaf9..e5e023d3e 100644
--- a/astrbot/core/platform/sources/discord/discord_platform_adapter.py
+++ b/astrbot/core/platform/sources/discord/discord_platform_adapter.py
@@ -427,8 +427,22 @@ class DiscordPlatformAdapter(Platform):
 
         # 使用 Pycord 的方法同步指令
         # 注意：这可能需要一些时间，并且有频率限制
-        await self.client.sync_commands()
-        logger.info("[Discord] Command synchronization completed.")
+        try:
+            await self.client.sync_commands()
+            logger.info("[Discord] Command synchronization completed.")
+        except discord.HTTPException as e:
+            if self._is_daily_command_quota_error(e):
+                logger.warning(
+                    "[Discord] Daily application command create quota reached "
+                    "(30034); command sync skipped. Existing commands should "
+                    "continue to work until the quota resets.",
+                )
+                return
+            logger.warning(f"[Discord] Sync commands failed: {e}")
+
+    @staticmethod
+    def _is_daily_command_quota_error(error: discord.HTTPException) -> bool:
+        return getattr(error, "code", None) == 30034
 
     def _create_dynamic_callback(self, cmd_name: str):
         """为每个指令动态创建一个异步回调函数"""
diff --git a/tests/test_discord_command_sync.py b/tests/test_discord_command_sync.py
new file mode 100644
index 000000000..dee2db89d
--- /dev/null
+++ b/tests/test_discord_command_sync.py
@@ -0,0 +1,71 @@
+import asyncio
+from unittest.mock import Mock
+
+import pytest
+
+from tests.fixtures.mocks.discord import (
+    MockDiscordBuilder,
+    mock_discord_modules,  # noqa: F401
+)
+
+
+class DiscordSyncError(Exception):
+    def __init__(self, message: str, code: int | None = None) -> None:
+        super().__init__(message)
+        self.code = code
+
+
+def _build_adapter(monkeypatch: pytest.MonkeyPatch):
+    from astrbot.core.platform.sources.discord import discord_platform_adapter
+    from astrbot.core.platform.sources.discord.discord_platform_adapter import (
+        DiscordPlatformAdapter,
+    )
+
+    monkeypatch.setattr(discord_platform_adapter, "star_handlers_registry", [])
+    monkeypatch.setattr(
+        discord_platform_adapter.discord,
+        "HTTPException",
+        DiscordSyncError,
+        raising=False,
+    )
+
+    adapter = DiscordPlatformAdapter(
+        {"discord_command_register": True},
+        {},
+        asyncio.Queue(),
+    )
+    adapter.client = MockDiscordBuilder.create_client()
+    return adapter
+
+
+@pytest.mark.asyncio
+async def test_discord_command_sync_ignores_daily_quota(monkeypatch):
+    from astrbot.core.platform.sources.discord import discord_platform_adapter
+
+    adapter = _build_adapter(monkeypatch)
+    warning = Mock()
+    monkeypatch.setattr(discord_platform_adapter.logger, "warning", warning)
+    adapter.client.sync_commands.side_effect = DiscordSyncError(
+        "Max number of daily application command creates reached",
+        code=30034,
+    )
+
+    await adapter._collect_and_register_commands()
+
+    adapter.client.sync_commands.assert_awaited_once()
+    warning.assert_called_once()
+    assert "30034" in warning.call_args.args[0]
+
+
+@pytest.mark.asyncio
+async def test_discord_command_sync_keeps_other_errors_fatal(monkeypatch):
+    adapter = _build_adapter(monkeypatch)
+    adapter.client.sync_commands.side_effect = DiscordSyncError(
+        "Missing Access",
+        code=50001,
+    )
+
+    with pytest.raises(DiscordSyncError):
+        await adapter._collect_and_register_commands()
+
+    adapter.client.sync_commands.assert_awaited_once()