diff --git a/hugegraph-hubble/hubble-be/src/main/java/org/apache/hugegraph/HugeGraphHubble.java b/hugegraph-hubble/hubble-be/src/main/java/org/apache/hugegraph/HugeGraphHubble.java
index 5e25ed8c5..e0c208279 100644
--- a/hugegraph-hubble/hubble-be/src/main/java/org/apache/hugegraph/HugeGraphHubble.java
+++ b/hugegraph-hubble/hubble-be/src/main/java/org/apache/hugegraph/HugeGraphHubble.java
@@ -27,6 +27,9 @@
 import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
 import org.springframework.scheduling.annotation.EnableScheduling;
 
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+
 @SpringBootApplication
 @EnableScheduling
 @MapperScan("org.apache.hugegraph.mapper")
@@ -38,6 +41,8 @@ public static void main(String[] args) {
     }
 
     public static void initEnv() {
+        Ex.check(Charset.defaultCharset().equals(StandardCharsets.UTF_8),
+                "Charset must be UTF-8, current:" + Charset.defaultCharset());
         String hubbleHomePath = System.getProperty("hubble.home.path");
         Ex.check(StringUtils.isNotEmpty(hubbleHomePath),
                  "The system property 'hubble.home.path' must be set");
diff --git a/hugegraph-hubble/hubble-dist/assembly/static/bin/start-hubble.sh b/hugegraph-hubble/hubble-dist/assembly/static/bin/start-hubble.sh
index 2626e0a5d..cecdb2435 100644
--- a/hugegraph-hubble/hubble-dist/assembly/static/bin/start-hubble.sh
+++ b/hugegraph-hubble/hubble-dist/assembly/static/bin/start-hubble.sh
@@ -42,7 +42,7 @@ for jar in "${LIB_PATH}"/*.jar; do
     class_path=${class_path}:${jar}
 done
 
-JAVA_OPTS="-Xms512m"
+JAVA_OPTS="-Xms512m -Dfile.encoding=UTF-8"
 JAVA_DEBUG_OPTS=""
 FOREGROUND="false"