diff --git a/app/views/admin/seminars/export.xlsx.axlsx b/app/views/admin/seminars/export.xlsx.axlsx
index 43a9c4b..09c34fb 100644
--- a/app/views/admin/seminars/export.xlsx.axlsx
+++ b/app/views/admin/seminars/export.xlsx.axlsx
@@ -31,8 +31,17 @@ wb.add_worksheet(name: sheet_name) do |sheet|
 
   seminar_signup_fields = @seminar.seminar_signup_fields.where(:disabled=>false).asc(:sort_number, :_id).to_a
 
+  # 確定每個欄位是否需要多語言輸出
+  field_multilang = {}
   seminar_signup_fields.each do |rf|
-    if rf.can_muti_lang_input?
+    # 檢查 option_list 是否有多個語言，或欄位本身標記為多語言
+    has_multiple_langs = rf.option_list && rf.option_list.values.first && rf.option_list.values.first.is_a?(Hash) && rf.option_list.values.first.keys.size > 1
+    field_multilang[rf.id] = rf.can_muti_lang_input? || has_multiple_langs
+  end
+
+  # 標題列
+  seminar_signup_fields.each do |rf|
+    if field_multilang[rf.id]
       @site_in_use_locales.each do |l|
         row << rf.title + " (#{t(l.to_s)})"
       end
@@ -52,6 +61,15 @@ wb.add_worksheet(name: sheet_name) do |sheet|
   wrap_text_style = wb.styles.add_style({:alignment => {:horizontal => :center, :vertical => :center, :wrap_text => true}})
   types = [:time]
   styles = [date_time_style]
+  
+  # 優化：一次性載入所有資料，避免 N+1 查詢
+  signup_ids = @seminar_signups.map(&:id)
+  signup_values_index = {}
+  SeminarSignupValue.where(:seminar_signup_id.in => signup_ids).each do |sv|
+    key = "#{sv.seminar_signup_id}_#{sv.seminar_signup_field_id}"
+    signup_values_index[key] = sv
+  end
+  
   @seminar_signups.each_with_index do |signup, i|
     row2 = []
     row2 << signup.created_at
@@ -65,12 +83,47 @@ wb.add_worksheet(name: sheet_name) do |sheet|
     row2 << "#{signup[:email]} "
     row2 << "#{signup.note} "
     seminar_signup_fields.each do |rf|
-      if rf.can_muti_lang_input?
+      key = "#{signup.id}_#{rf.id}"
+      signup_value = signup_values_index[key]
+      
+      # 根據欄位是否需要多語言來輸出
+      if field_multilang[rf.id]
         @site_in_use_locales.each do |l|
-          row2 << (@seminar.get_attribute_value(rf,signup.id).get_value_by_locale(l) rescue '')
+          if signup_value
+            # 處理陣列型別的 val
+            if signup_value.val.is_a?(Array)
+              # 陣列：對每個元素查詢 option_list 用逗號分隔
+              display_value = signup_value.val.map { |v| rf.option_list[v.to_s]&.[](l.to_s) || rf.option_list[v.to_s]&.[]('en') }.compact.join(', ') rescue ''
+            elsif rf.option_list && rf.option_list[signup_value.val.to_s]
+              # 單個值且有 option_list
+              display_value = rf.option_list[signup_value.val.to_s][l.to_s] || rf.option_list[signup_value.val.to_s]['en'] rescue ''
+            else
+              # 沒有 option_list 直接用 val
+              display_value = signup_value.val.to_s
+            end
+            row2 << display_value
+          else
+            row2 << ''
+          end
         end
       else
-        row2 << (@seminar.get_attribute_value(rf,signup.id).get_value_by_locale(I18n.locale) rescue '')
+        # 非多語言欄位，只輸出一次
+        if signup_value
+          # 處理陣列型別的 val
+          if signup_value.val.is_a?(Array)
+            # 陣列：對每個元素查詢 option_list 用逗號分隔
+            display_value = signup_value.val.map { |v| rf.option_list[v.to_s]&.[]('en') }.compact.join(', ') rescue ''
+          elsif rf.option_list && rf.option_list[signup_value.val.to_s]
+            # 單個值且有 option_list
+            display_value = rf.option_list[signup_value.val.to_s]['en'] rescue ''
+          else
+            # 沒有 option_list 直接用 val
+            display_value = signup_value.val.to_s
+          end
+          row2 << display_value
+        else
+          row2 << ''
+        end
       end
     end
     if i == 0
@@ -82,4 +135,4 @@ wb.add_worksheet(name: sheet_name) do |sheet|
     sheet.add_row row2 , :types => types, :style => styles
   end
 
-end
\ No newline at end of file
+end