diff --git a/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/LogUtils.java b/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/LogUtils.java
index b1337f1c8a52..23c34e6877b5 100644
--- a/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/LogUtils.java
+++ b/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/LogUtils.java
@@ -26,7 +26,6 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
-import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.util.List;
@@ -142,22 +141,22 @@ public static String readWholeFileContent(String filePath) {
 
     public static String rollViewLogLines(List<String> lines) {
         StringBuilder builder = new StringBuilder();
-        final int MaxResponseLogSize = 65535;
-        int totalLogByteSize = 0;
+        final int MaxResponseLogCharSize = 65535;
+        int totalLogCharSize = 0;
         for (String line : lines) {
             // If a single line of log is exceed max response size, cut off the line
-            final int lineByteSize = line.getBytes(StandardCharsets.UTF_8).length;
-            if (lineByteSize >= MaxResponseLogSize) {
-                builder.append(line, 0, MaxResponseLogSize)
-                        .append(" [this line's size ").append(lineByteSize).append(" bytes is exceed ")
-                        .append(MaxResponseLogSize).append(" bytes, so only ")
-                        .append(MaxResponseLogSize).append(" characters are reserved for performance reasons.]")
+            final int lineCharSize = line.length();
+            if (lineCharSize >= MaxResponseLogCharSize) {
+                builder.append(line, 0, MaxResponseLogCharSize)
+                        .append(" [this line's size ").append(lineCharSize).append(" characters exceeds ")
+                        .append(MaxResponseLogCharSize).append(" characters, so only ")
+                        .append(MaxResponseLogCharSize).append(" characters are reserved for performance reasons.]")
                         .append("\r\n");
             } else {
                 builder.append(line).append("\r\n");
             }
-            totalLogByteSize += lineByteSize;
-            if (totalLogByteSize >= MaxResponseLogSize) {
+            totalLogCharSize += lineCharSize;
+            if (totalLogCharSize >= MaxResponseLogCharSize) {
                 break;
             }
         }