diff --git a/app/views/admin/site_panel/_form.html.erb b/app/views/admin/site_panel/_form.html.erb
index 2577922..8fdd1fc 100644
--- a/app/views/admin/site_panel/_form.html.erb
+++ b/app/views/admin/site_panel/_form.html.erb
@@ -281,6 +281,23 @@
     add_change_event_for_root_domain();
   })
   $("form.main-forms").submit(function(){
+    // === 新增：送出前檢查必填欄位，避免 school_name/site_name/db_name 空白就送出 ===
+    var required_fields = [
+      { selector: "#school_name", label: "School Name" },
+      { selector: "#site_name",   label: "Site Name" },
+      { selector: "#db_name",     label: "Database Name" }
+    ];
+    var missing_labels = [];
+    required_fields.forEach(function(field){
+      if ($.trim($(field.selector).val()) === "") {
+        missing_labels.push(field.label);
+      }
+    });
+    if (missing_labels.length > 0) {
+      alert("請填寫以下欄位後再送出：\n" + missing_labels.join("、"));
+      return false;
+    }
+    // === 新增結束 ===
     $("#domain_name").removeAttr('disabled');
     $("#path").removeAttr("disabled");
     var type = $("#site_construct_site_type").val();
@@ -307,4 +324,4 @@
     $div.append("<span class=\"remove_btn\">X</span>").append(clone_input);
     $(this).siblings("#append_port_block").append($div)
   })
-</script>
\ No newline at end of file
+</script>
diff --git a/lib/tasks/copy_site.rake b/lib/tasks/copy_site.rake
index 4d86750..9f87057 100644
--- a/lib/tasks/copy_site.rake
+++ b/lib/tasks/copy_site.rake
@@ -4,6 +4,17 @@ namespace :create_site do
   desc "Copy Site from another site"
   task :copy_site,[:ip, :server_port,:user,:password,:site_name,:domain_name,:port,:db_name,:path,:site_construct_id,:template_site_construct_id,:only_copy_installed_module] => :environment do |task,args|
     @password = args.password
+    # === 新增：關鍵欄位為空時直接中止，避免路徑塌陷後執行 chown/chmod -R 或 rsync --delete ===
+    if args.site_name.blank? || args.path.blank? || args.db_name.blank?
+      error_msg = "copy_site 中止：site_name(#{args.site_name.inspect}) / path(#{args.path.inspect}) / db_name(#{args.db_name.inspect}) 不可為空白"
+      puts error_msg
+      if args.site_construct_id.present?
+        sc = SiteConstruct.find(args.site_construct_id) rescue nil
+        sc.update(:status => "error", :infos => (sc.infos + [error_msg])) if sc
+      end
+      next
+    end
+    # === 新增結束 ===
     template_site = SiteConstruct.find(args.template_site_construct_id)
     if args.site_construct_id.blank?
       @site_construct = SiteConstruct.new
@@ -271,4 +282,4 @@ namespace :create_site do
     @site_construct.save!
     return @site_construct.infos
   end
-end
\ No newline at end of file
+end
diff --git a/lib/tasks/create_site.rake b/lib/tasks/create_site.rake
index 543e2bd..5155cf5 100644
--- a/lib/tasks/create_site.rake
+++ b/lib/tasks/create_site.rake
@@ -5,6 +5,17 @@ namespace :create_site do
   desc "Create Site Script"
   task :create_site,[:git_template_url,:git_extension_url,:git_url,:ip, :server_port,:user,:password,:site_name,:domain_name,:port,:db_name,:path,:site_construct_id] => :environment do |task,args|
     @password = args.password
+    # === 新增：關鍵欄位為空時直接中止，避免路徑塌陷後對 "/" 執行 git clone / chown / chmod 777 -R ===
+    if args.site_name.blank? || args.path.blank? || args.db_name.blank?
+      error_msg = "create_site 中止：site_name(#{args.site_name.inspect}) / path(#{args.path.inspect}) / db_name(#{args.db_name.inspect}) 不可為空白"
+      puts error_msg
+      if args.site_construct_id.present?
+        sc = SiteConstruct.find(args.site_construct_id) rescue nil
+        sc.update(:status => "error", :infos => (sc.infos + [error_msg])) if sc
+      end
+      next
+    end
+    # === 新增結束 ===
     if args.site_construct_id.blank?
       @site_construct = SiteConstruct.new
       @site_construct.server_type = (SiteServer.where(:ip=>args.ip).first.server_name rescue args.ip)
@@ -220,4 +231,4 @@ namespace :create_site do
     @site_construct.save!
     return @site_construct.infos
   end
-end
\ No newline at end of file
+end