diff --git a/backend/app/models/schemas.py b/backend/app/models/schemas.py
index 0af598ec..50783cb6 100644
--- a/backend/app/models/schemas.py
+++ b/backend/app/models/schemas.py
@@ -11,7 +11,7 @@ class AnalysisRequest(BaseModel):
     ticker: str = Field(..., description="Stock ticker symbol (e.g., 'NVDA', 'AAPL')", min_length=1, max_length=10)
     analysis_date: str = Field(..., description="Analysis date in YYYY-MM-DD format")
     analysts: Optional[List[str]] = Field(
-        default=["market", "sentiment", "news", "fundamentals"],
+        default=["market", "social", "news", "fundamentals"],
         description="List of analysts to include in analysis"
     )
     research_depth: Optional[int] = Field(default=1, ge=1, le=5, description="Research depth (1-5)")
diff --git a/backend/app/services/trading_service.py b/backend/app/services/trading_service.py
index 40368297..d3a2cd9e 100644
--- a/backend/app/services/trading_service.py
+++ b/backend/app/services/trading_service.py
@@ -70,7 +70,7 @@ class TradingService:
         try:
             # Default analysts if not provided
             if analysts is None:
-                analysts = ["market", "sentiment", "news", "fundamentals"]
+                analysts = ["market", "social", "news", "fundamentals"]
             
             # Dynamically set environment variables for this request
             import os
@@ -142,7 +142,7 @@ class TradingService:
     
     def get_available_analysts(self) -> List[str]:
         """Get list of available analyst types"""
-        return ["market", "sentiment", "news", "fundamentals"]
+        return ["market", "social", "news", "fundamentals"]
     
     def get_available_llms(self) -> List[str]:
         """Get list of available OpenAI LLM models"""
diff --git a/frontend/components/analysis/AnalysisForm.tsx b/frontend/components/analysis/AnalysisForm.tsx
index de5b4698..50a2ec95 100644
--- a/frontend/components/analysis/AnalysisForm.tsx
+++ b/frontend/components/analysis/AnalysisForm.tsx
@@ -133,11 +133,9 @@ export function AnalysisForm({ onSubmit, loading = false }: AnalysisFormProps) {
                         </SelectTrigger>
                       </FormControl>
                       <SelectContent>
-                        <SelectItem value="1">1 - 快速</SelectItem>
-                        <SelectItem value="2">2 - 標準</SelectItem>
-                        <SelectItem value="3">3 - 詳盡</SelectItem>
-                        <SelectItem value="4">4 - 深入</SelectItem>
-                        <SelectItem value="5">5 - 全面</SelectItem>
+                        <SelectItem value="1">淺層 - 快速研究，較少的辯論和策略討論</SelectItem>
+                        <SelectItem value="3">中等 - 中等程度，適度的辯論和策略討論</SelectItem>
+                        <SelectItem value="5">深層 - 全面研究，深入的辯論和策略討論</SelectItem>
                       </SelectContent>
                     </Select>
                     <FormDescription>