diff --git a/liteflow-ai/liteflow-ai-engine/src/main/java/com/yomahub/liteflow/ai/engine/model/ModelConfig.java b/liteflow-ai/liteflow-ai-engine/src/main/java/com/yomahub/liteflow/ai/engine/model/ModelConfig.java
index fc47fb5bd..8f9e2db24 100644
--- a/liteflow-ai/liteflow-ai-engine/src/main/java/com/yomahub/liteflow/ai/engine/model/ModelConfig.java
+++ b/liteflow-ai/liteflow-ai-engine/src/main/java/com/yomahub/liteflow/ai/engine/model/ModelConfig.java
@@ -63,6 +63,7 @@ public class ModelConfig implements RequestBodyConvertible, RequestHeaderConvert
         this.connectTimeout = connectTimeout;
         this.readTimeout = readTimeout;
         this.headersConfig = headersConfig;
+        checkRequiredFields();
     }
 
     protected ModelConfig(Builder<?> builder) {
@@ -74,6 +75,17 @@ public class ModelConfig implements RequestBodyConvertible, RequestHeaderConvert
         this.connectTimeout = builder.connectTimeout;
         this.readTimeout = builder.readTimeout;
         this.headersConfig.putAll(builder.headersConfig);
+        checkRequiredFields();
+    }
+
+    /**
+     * 检查必填字段
+     */
+    protected void checkRequiredFields() {
+        Objects.requireNonNull(this.apiUrl, "API URL must not be null");
+        Objects.requireNonNull(this.endPoint, "End Point must not be null");
+        Objects.requireNonNull(this.provider, "Provider must not be null");
+        Objects.requireNonNull(this.model, "Model must not be null");
     }
 
     @Override
@@ -231,13 +243,6 @@ public class ModelConfig implements RequestBodyConvertible, RequestHeaderConvert
             return self();
         }
 
-        protected void checkRequiredFields() {
-            Objects.requireNonNull(apiUrl, "API URL must not be null");
-            Objects.requireNonNull(endPoint, "End Point must not be null");
-            Objects.requireNonNull(provider, "Provider must not be null");
-            Objects.requireNonNull(model, "Model must not be null");
-        }
-
         public abstract ModelConfig build();
 
         private static class BuilderImpl extends Builder<BuilderImpl> {
@@ -249,7 +254,6 @@ public class ModelConfig implements RequestBodyConvertible, RequestHeaderConvert
 
             @Override
             public ModelConfig build() {
-                checkRequiredFields();
                 return new ModelConfig(this);
             }
         }
diff --git a/liteflow-ai/liteflow-ai-engine/src/main/java/com/yomahub/liteflow/ai/engine/model/chat/entity/ChatConfig.java b/liteflow-ai/liteflow-ai-engine/src/main/java/com/yomahub/liteflow/ai/engine/model/chat/entity/ChatConfig.java
index a592ea02f..3225d2846 100644
--- a/liteflow-ai/liteflow-ai-engine/src/main/java/com/yomahub/liteflow/ai/engine/model/chat/entity/ChatConfig.java
+++ b/liteflow-ai/liteflow-ai-engine/src/main/java/com/yomahub/liteflow/ai/engine/model/chat/entity/ChatConfig.java
@@ -69,7 +69,6 @@ public class ChatConfig extends ModelConfig {
 
             @Override
             public ChatConfig build() {
-                checkRequiredFields();
                 return new ChatConfig(this);
             }
         }
diff --git a/liteflow-ai/liteflow-ai-model/liteflow-ai-dashscope/src/main/java/com/yomahub/liteflow/ai/model/dashscope/model/chat/DashScopeChatConfig.java b/liteflow-ai/liteflow-ai-model/liteflow-ai-dashscope/src/main/java/com/yomahub/liteflow/ai/model/dashscope/model/chat/DashScopeChatConfig.java
index 01da9beb5..e8ccff937 100644
--- a/liteflow-ai/liteflow-ai-model/liteflow-ai-dashscope/src/main/java/com/yomahub/liteflow/ai/model/dashscope/model/chat/DashScopeChatConfig.java
+++ b/liteflow-ai/liteflow-ai-model/liteflow-ai-dashscope/src/main/java/com/yomahub/liteflow/ai/model/dashscope/model/chat/DashScopeChatConfig.java
@@ -4,6 +4,7 @@ import com.yomahub.liteflow.ai.engine.model.chat.entity.ChatConfig;
 
 import java.time.Duration;
 import java.util.Map;
+import java.util.Objects;
 
 /**
  * DashScope 聊天配置类
@@ -36,6 +37,12 @@ public class DashScopeChatConfig extends ChatConfig {
         super(builder);
     }
 
+    @Override
+    protected void checkRequiredFields() {
+        super.checkRequiredFields();
+        Objects.requireNonNull(this.apiKey, "API Key must not be null, please set it via configuration: {liteflow.ai.dashscope.api-key}");
+    }
+
     public static Builder builder() {
         return new Builder();
     }
@@ -49,7 +56,6 @@ public class DashScopeChatConfig extends ChatConfig {
 
         @Override
         public DashScopeChatConfig build() {
-            checkRequiredFields();
             return new DashScopeChatConfig(this);
         }
     }
diff --git a/liteflow-ai/liteflow-ai-model/liteflow-ai-ollama/src/main/java/com/yomahub/liteflow/ai/model/ollama/model/chat/OllamaChatConfig.java b/liteflow-ai/liteflow-ai-model/liteflow-ai-ollama/src/main/java/com/yomahub/liteflow/ai/model/ollama/model/chat/OllamaChatConfig.java
index fe144acc0..753c03979 100644
--- a/liteflow-ai/liteflow-ai-model/liteflow-ai-ollama/src/main/java/com/yomahub/liteflow/ai/model/ollama/model/chat/OllamaChatConfig.java
+++ b/liteflow-ai/liteflow-ai-model/liteflow-ai-ollama/src/main/java/com/yomahub/liteflow/ai/model/ollama/model/chat/OllamaChatConfig.java
@@ -49,7 +49,6 @@ public class OllamaChatConfig extends ChatConfig {
 
         @Override
         public OllamaChatConfig build() {
-            checkRequiredFields();
             return new OllamaChatConfig(this);
         }
     }
diff --git a/liteflow-ai/liteflow-ai-model/liteflow-ai-openai/src/main/java/com/yomahub/liteflow/ai/model/openai/model/chat/OpenAIChatConfig.java b/liteflow-ai/liteflow-ai-model/liteflow-ai-openai/src/main/java/com/yomahub/liteflow/ai/model/openai/model/chat/OpenAIChatConfig.java
index a43bd329e..0b29d57b7 100644
--- a/liteflow-ai/liteflow-ai-model/liteflow-ai-openai/src/main/java/com/yomahub/liteflow/ai/model/openai/model/chat/OpenAIChatConfig.java
+++ b/liteflow-ai/liteflow-ai-model/liteflow-ai-openai/src/main/java/com/yomahub/liteflow/ai/model/openai/model/chat/OpenAIChatConfig.java
@@ -4,6 +4,7 @@ import com.yomahub.liteflow.ai.engine.model.chat.entity.ChatConfig;
 
 import java.time.Duration;
 import java.util.Map;
+import java.util.Objects;
 
 /**
  * OpenAI 聊天配置类
@@ -32,6 +33,12 @@ public class OpenAIChatConfig extends ChatConfig {
         super(apiUrl, endPoint, apiKey, provider, model, connectTimeout, readTimeout, headersConfig, autoToolCallEnabled);
     }
 
+    @Override
+    protected void checkRequiredFields() {
+        super.checkRequiredFields();
+        Objects.requireNonNull(this.apiKey, "API Key must not be null, please set it via configuration: {liteflow.ai.openai.api-key}");
+    }
+
     public OpenAIChatConfig(Builder builder) {
         super(builder);
     }
@@ -49,7 +56,6 @@ public class OpenAIChatConfig extends ChatConfig {
 
         @Override
         public OpenAIChatConfig build() {
-            checkRequiredFields();
             return new OpenAIChatConfig(this);
         }
     }