diff --git a/benchmarking/run_cases.py b/benchmarking/run_cases.py
index 55b798b..97142a7 100644
--- a/benchmarking/run_cases.py
+++ b/benchmarking/run_cases.py
@@ -63,12 +63,12 @@ def main(args):
     else:
         with open("../conf/cases.conf", "r") as f:
             case_lines = f.readlines()
-            for i in case_lines:
-                if i.strip() == "":
-                    case_lines.remove(i)
             for line in case_lines:
                 p = line.split()
-                testcase_list.append({"engine":p[0],"parameter":p[1:]})
+                if len(p) > 0 and p!="\n":
+                    if not p[0].startswith('#'):
+                        testcase_list.append({"engine":p[0],"parameter":p[1:]})
+
         for testcase in testcase_list:
             if testcase["engine"] == "qemurbd":
                 benchmark = qemurbd.QemuRbd()
diff --git a/conf/config.py b/conf/config.py
index d2fa8ba..5a7c71f 100644
--- a/conf/config.py
+++ b/conf/config.py
@@ -287,22 +287,18 @@ def get_config(self):
         try:
             with open(self.conf_path,"r") as f:
                 lines = f.readlines()
-            for i in lines:
-                if i.strip() == "":
-                    lines.remove(i)
             for line in lines:
                 p = line.split()
-                testcase_list.append( self.parse_benchmark_cases( p ) )
+                if len(p) != 0 and p!="\n":
+                    testcase_list.append( self.parse_benchmark_cases( p ) )
         except:
             common.bash("cp %s %s" % (self.default_conf_path, self.conf_path))
             with open(self.conf_path,"r") as f:
                 lines = f.readlines()
-            for i in lines:
-                if i.strip() == "":
-                    lines.remove(i)
             for line in lines:
                 p = line.split()
-                testcase_list.append( self.parse_benchmark_cases( p ) )
+                if len(p) != 0 and p!="\n":
+                    testcase_list.append( self.parse_benchmark_cases( p ) )
         return testcase_list
 
     def parse_benchmark_cases(self, testcase):
diff --git a/webui/static/js/Common.js b/webui/static/js/Common.js
index af86c19..5b1d930 100644
--- a/webui/static/js/Common.js
+++ b/webui/static/js/Common.js
@@ -276,7 +276,8 @@ function CreateTableHTML_Benchmark(jsonObj){
     });
 
     tableHtml += "</tbody>";
-    tableHtml += "</table>"
+    tableHtml += "</table>";
+    tableHtml += "<div><li class='error'>If case start with '#',workflow will not running this cases.</li></div>";
     return tableHtml;
 }