diff --git a/doubao_provider.py b/doubao_provider.py
new file mode 100644
index 000000000..94159e02a
--- /dev/null
+++ b/doubao_provider.py
@@ -0,0 +1,62 @@
+"""Doubao (豆包) provider implementation.
+
+Doubao is ByteDance's AI service with OpenAI-compatible API.
+Default base_url: https://aquasec.bytedance.net/api/v3 (or Volcano Engine Ark)
+"""
+
+from typing import Any, Dict, List, Optional
+
+from openai import OpenAI
+
+from runtime.node.agent.providers.openai_provider import OpenAIProvider
+
+
+class DoubaoProvider(OpenAIProvider):
+    """Doubao (豆包) provider implementation.
+    
+    Inherits from OpenAIProvider since Doubao API is OpenAI-compatible.
+    Supports both:
+    - ByteDance Doubao: https://aquasec.bytedance.net/api/v3
+    - Volcano Engine Ark: https://ark.cn-beijing.volces.com/api/v3
+    """
+
+    DEFAULT_BASE_URL = "https://aquasec.bytedance.net/api/v3"
+
+    def create_client(self):
+        """
+        Create and return the OpenAI-compatible client for Doubao.
+        
+        Returns:
+            OpenAI client instance configured for Doubao API
+        """
+        base_url = self.base_url if self.base_url else self.DEFAULT_BASE_URL
+        return OpenAI(
+            api_key=self.api_key,
+            base_url=base_url,
+        )
+
+    def _is_chat_completions_mode(self, client: Any) -> bool:
+        """
+        Doubao only supports Chat Completions API, not Responses API.
+        
+        Always return True to force Chat Completions mode.
+        """
+        return True
+
+    def _track_token_usage(self, response: Any) -> None:
+        """Record token usage if a tracker is attached to the config."""
+        token_tracker = getattr(self.config, "token_tracker", None)
+        if not token_tracker:
+            return
+
+        usage = self.extract_token_usage(response)
+        if usage.input_tokens == 0 and usage.output_tokens == 0 and not usage.metadata:
+            return
+
+        node_id = getattr(self.config, "node_id", "ALL")
+        usage.node_id = node_id
+        usage.model_name = self.model_name
+        usage.workflow_id = token_tracker.workflow_id
+        usage.provider = "doubao"
+
+        token_tracker.record_usage(node_id, self.model_name, usage, provider="doubao")
diff --git a/runtime/node/agent/providers/builtin_providers.py b/runtime/node/agent/providers/builtin_providers.py
index 016beb27b..a8e04667b 100755
--- a/runtime/node/agent/providers/builtin_providers.py
+++ b/runtime/node/agent/providers/builtin_providers.py
@@ -11,6 +11,21 @@
     summary="OpenAI models via the official OpenAI SDK (responses API)",
 )
 
+try:
+    from runtime.node.agent.providers.doubao_provider import DoubaoProvider
+except ImportError:
+    DoubaoProvider = None
+
+if DoubaoProvider is not None:
+    ProviderRegistry.register(
+        "doubao",
+        DoubaoProvider,
+        label="Doubao",
+        summary="ByteDance Doubao models via OpenAI-compatible API",
+    )
+else:
+    print("Doubao provider not registered.")
+
 try:
     from runtime.node.agent.providers.gemini_provider import GeminiProvider
 except ImportError:
diff --git a/runtime/node/agent/providers/doubao_provider.py b/runtime/node/agent/providers/doubao_provider.py
new file mode 100644
index 000000000..94159e02a
--- /dev/null
+++ b/runtime/node/agent/providers/doubao_provider.py
@@ -0,0 +1,62 @@
+"""Doubao (豆包) provider implementation.
+
+Doubao is ByteDance's AI service with OpenAI-compatible API.
+Default base_url: https://aquasec.bytedance.net/api/v3 (or Volcano Engine Ark)
+"""
+
+from typing import Any, Dict, List, Optional
+
+from openai import OpenAI
+
+from runtime.node.agent.providers.openai_provider import OpenAIProvider
+
+
+class DoubaoProvider(OpenAIProvider):
+    """Doubao (豆包) provider implementation.
+    
+    Inherits from OpenAIProvider since Doubao API is OpenAI-compatible.
+    Supports both:
+    - ByteDance Doubao: https://aquasec.bytedance.net/api/v3
+    - Volcano Engine Ark: https://ark.cn-beijing.volces.com/api/v3
+    """
+
+    DEFAULT_BASE_URL = "https://aquasec.bytedance.net/api/v3"
+
+    def create_client(self):
+        """
+        Create and return the OpenAI-compatible client for Doubao.
+        
+        Returns:
+            OpenAI client instance configured for Doubao API
+        """
+        base_url = self.base_url if self.base_url else self.DEFAULT_BASE_URL
+        return OpenAI(
+            api_key=self.api_key,
+            base_url=base_url,
+        )
+
+    def _is_chat_completions_mode(self, client: Any) -> bool:
+        """
+        Doubao only supports Chat Completions API, not Responses API.
+        
+        Always return True to force Chat Completions mode.
+        """
+        return True
+
+    def _track_token_usage(self, response: Any) -> None:
+        """Record token usage if a tracker is attached to the config."""
+        token_tracker = getattr(self.config, "token_tracker", None)
+        if not token_tracker:
+            return
+
+        usage = self.extract_token_usage(response)
+        if usage.input_tokens == 0 and usage.output_tokens == 0 and not usage.metadata:
+            return
+
+        node_id = getattr(self.config, "node_id", "ALL")
+        usage.node_id = node_id
+        usage.model_name = self.model_name
+        usage.workflow_id = token_tracker.workflow_id
+        usage.provider = "doubao"
+
+        token_tracker.record_usage(node_id, self.model_name, usage, provider="doubao")