diff --git a/application/views/keyworlds/index.php b/application/views/keyworlds/index.php
index b161c433..0fb8187d 100644
--- a/application/views/keyworlds/index.php
+++ b/application/views/keyworlds/index.php
@@ -328,7 +328,7 @@
                 categories: <?php echo $data_time; ?>,
                 labels: {rotation: -45,align: 'right'}
             },
-            yAxis: {title: {text: '关键词排名'},reversed:true,allowDecimals:false},
+            yAxis: {title: {text: '关键词排名'},reversed:true,allowDecimals:false,min:0, startOnTick:false},
             tooltip: {
                 enabled: true,
                 formatter: function() {