diff --git a/frontend/src/business/components/api/test/model/JMX.js b/frontend/src/business/components/api/test/model/JMX.js
index 5e5aad36a8..25d8356028 100644
--- a/frontend/src/business/components/api/test/model/JMX.js
+++ b/frontend/src/business/components/api/test/model/JMX.js
@@ -279,7 +279,7 @@ export class HTTPSamplerArguments extends Element {
     let collectionProp = this.collectionProp('Arguments.arguments');
     this.args.forEach(arg => {
       let elementProp = collectionProp.elementProp(arg.name, 'HTTPArgument');
-      elementProp.boolProp('HTTPArgument.always_encode', arg.encode || false);
+      elementProp.boolProp('HTTPArgument.always_encode', arg.encode || true);
       elementProp.boolProp('HTTPArgument.use_equals', arg.equals || true);
       if (arg.name) {
         elementProp.stringProp('Argument.name', arg.name);
diff --git a/frontend/src/business/components/api/test/model/ScenarioModel.js b/frontend/src/business/components/api/test/model/ScenarioModel.js
index 46e56647ac..03c4a226d6 100644
--- a/frontend/src/business/components/api/test/model/ScenarioModel.js
+++ b/frontend/src/business/components/api/test/model/ScenarioModel.js
@@ -456,7 +456,7 @@ class JMXGenerator {
   }
 
   addScenarioVariables(threadGroup, scenario) {
-    let args = scenario.variables.filter(this.filter)
+    let args = this.replaceKV(scenario.variables);
     if (args.length > 0) {
       let name = scenario.name + " Variables"
       threadGroup.put(new Arguments(name, args));
@@ -464,7 +464,7 @@ class JMXGenerator {
   }
 
   addScenarioHeaders(threadGroup, scenario) {
-    let headers = scenario.headers.filter(this.filter)
+    let headers = this.replaceKV(scenario.headers);
     if (headers.length > 0) {
       let name = scenario.name + " Headers"
       threadGroup.put(new HeaderManager(name, headers));
@@ -473,14 +473,14 @@ class JMXGenerator {
 
   addRequestHeader(httpSamplerProxy, request) {
     let name = request.name + " Headers";
-    let headers = request.headers.filter(this.filter);
+    let headers = this.replaceKV(request.headers);
     if (headers.length > 0) {
       httpSamplerProxy.put(new HeaderManager(name, headers));
     }
   }
 
   addRequestArguments(httpSamplerProxy, request) {
-    let args = request.parameters.filter(this.filter)
+    let args = this.replaceKV(request.parameters);
     if (args.length > 0) {
       httpSamplerProxy.add(new HTTPSamplerArguments(args));
     }
@@ -514,7 +514,7 @@ class JMXGenerator {
   getAssertion(regex) {
     let name = regex.description;
     let type = JMX_ASSERTION_CONDITION.CONTAINS; // 固定用Match，自己写正则
-    let value = regex.expression;
+    let value = this.replace(regex.expression);
     switch (regex.subject) {
       case ASSERTION_REGEX_SUBJECT.RESPONSE_CODE:
         return new ResponseCodeAssertion(name, type, value);
@@ -577,6 +577,20 @@ class JMXGenerator {
     return config.isValid();
   }
 
+  replace(str) {
+    return str.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;").replace(/'/g, "&apos;").replace(/"/g, "&quot;");
+  }
+
+  replaceKV(kvs) {
+    let results = [];
+    kvs.filter(this.filter).forEach(kv => {
+      let name = this.replace(kv.name);
+      let value = this.replace(kv.value);
+      results.push(new KeyValue(name, value));
+    });
+    return results;
+  }
+
   toXML() {
     let xml = '<?xml version="1.0" encoding="UTF-8"?>\n';
     xml += this.jmeterTestPlan.toXML();