diff --git a/internal/multiagent/adk_init.go b/internal/multiagent/adk_init.go
new file mode 100644
index 00000000..eb5142b2
--- /dev/null
+++ b/internal/multiagent/adk_init.go
@@ -0,0 +1,16 @@
+package multiagent
+
+import (
+	"fmt"
+
+	"github.com/cloudwego/eino/adk"
+)
+
+// InitADK configures global Eino ADK settings. Call once at process startup before
+// any ADK middleware or agents are created.
+func InitADK() error {
+	if err := adk.SetLanguage(adk.LanguageChinese); err != nil {
+		return fmt.Errorf("adk set language: %w", err)
+	}
+	return nil
+}