diff --git a/library/think/debug/Console.php b/library/think/debug/Console.php
index 1763fc66..8a232c8c 100644
--- a/library/think/debug/Console.php
+++ b/library/think/debug/Console.php
@@ -54,7 +54,7 @@ class Console
         }
         // 获取基本信息
         $runtime = number_format(microtime(true) - THINK_START_TIME, 10);
-        $reqs    = number_format(1 / $runtime, 2);
+        $reqs    = $runtime > 0 ? number_format(1 / $runtime, 2) : '∞';
         $mem     = number_format((memory_get_usage() - THINK_START_MEM) / 1024, 2);
 
         if (isset($_SERVER['HTTP_HOST'])) {
diff --git a/library/think/debug/Html.php b/library/think/debug/Html.php
index 1061b372..f8651aa9 100644
--- a/library/think/debug/Html.php
+++ b/library/think/debug/Html.php
@@ -54,7 +54,7 @@ class Html
         }
         // 获取基本信息
         $runtime = number_format(microtime(true) - THINK_START_TIME, 10);
-        $reqs    = number_format(1 / $runtime, 2);
+        $reqs    = $runtime > 0 ? number_format(1 / $runtime, 2) : '∞';
         $mem     = number_format((memory_get_usage() - THINK_START_MEM) / 1024, 2);
 
         // 页面Trace信息